The scientists does a dihybrid cross of two corn plants. One corn plant is homozygous for yellow kernels and heterozygous for smooth kernels. The other corn plant is heterozygous for purple kernels and homozygous for smooth kernels. Which best describes the possible offspring of this cross?
a
There is a 50% chance of having purple, smooth kernels and a 50% chance of having yellow, smooth kernels.
b
There is a 50% chance of having purple, wrinkled kernels and a 50% chance of having yellow, shrunken kernels.
c
There is a 100% chance of having purple, smooth kernels.
d
There is a 100% chance of having yellow, shrunken kernels.
Answers
There is a 50% chance of having purple, smooth kernels and a 50% chance of having yellow, smooth kernels. Option A.
Dihybrid crossingFrom the illustration, the yellow kernel allele is recessive, the purple kernel is dominant, the smooth kernel is dominant, and the shrunken kernel is recessive.
The genotype of corn that is homozygous for yellow kernels and heterozygous for smooth kernels = ppSs
The genotype of corn that is heterozygous for purple kernels and homozygous for smooth kernels = PpSS
Crossing the two:
ppSs x PpSS
Genotype and phenotype of offspring:
8 P_S_ = purple kernel, smooth kernel8 ppS_ = yellow kernel, smooth kernelIn other words, from the phenotypic analysis, there is a 50% chance of having purple, smooth kernels and a 50% chance of having yellow, smooth kernels.
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Related Questions
‼️BRAINLIEST!!
Which part of a flower grows into a seed?
pollen
egg cell
ovule
anther
Answers
Answer:carpels
In flowering plants, the female reproductive structures that produce seeds are contained within the carpels of the flower. A carpal consists of the stigma, style and ovary. The ovary contains ovules (eggs) that become seeds once they are fertilized.
Explanation:
Axons crossing from one side of the spinal cord to the other within the gray matter are found in the
A) anterior gray horns.
B) lateral gray horns.
C) posterior gray horns.
D) gray commissures.
E) white commissures.
Answers
Axons crossing from one side of the spinal cord to the other within the gray matter are found in the gray commissures. Therefore, option D is the correct answer.
The gray commissures are regions of gray matter that connect the two sides of the spinal cord. They contain bundles of axons that cross from one side to the other and are involved in relaying information between the left and right sides of the body. The gray commissures are located at different levels of the spinal cord and are surrounded by white matter.
The anterior gray horns (option A) contain motor neurons that innervate skeletal muscle, while the posterior gray horns (option C) contain sensory neurons that receive sensory information from the periphery. The lateral gray horns (option B) are only present in the thoracic and upper lumbar regions of the spinal cord and contain preganglionic sympathetic neurons. The white commissures (option E) are regions of white matter that connect the two sides of the spinal cord and contain axons that ascend or descend the spinal cord, but do not cross from one side to the other.
The gray commissures are important structures in the spinal cord because they allow for communication between the left and right sides of the body. They contain bundles of axons that cross from one side to the other and are involved in relaying information between the two sides.
There are two gray commissures in the spinal cord: the anterior gray commissure and the posterior gray commissure. The anterior gray commissure is located at the front of the spinal cord and contains axons that cross over from the left to the right side of the cord. The posterior gray commissure is located at the back of the spinal cord and contains axons that cross over from the right to the left side of the cord.
The gray commissures are located in the central part of the spinal cord and are surrounded by white matter. The white matter contains ascending and descending axons that connect different levels of the spinal cord to the brain and other parts of the body.
The gray commissures play an important role in coordinating movements on the left and right sides of the body. For example, when we walk or run, the muscles on the left and right sides of the body need to work together in a coordinated manner. The gray commissures help to ensure that the motor signals sent by the brain are relayed to the appropriate muscles on both sides of the body, allowing for smooth and coordinated movements.
In addition to their role in motor coordination, the gray commissures are also involved in the processing of sensory information. The axons that cross over in the gray commissures allow sensory information from one side of the body to be transmitted to the opposite side of the spinal cord, where it can be processed and integrated with other sensory information.
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The hare curls up to stay warm. It has a short tail and ears that hold in body heat. The hare would most likely live in a tundra biome.true r false
Answers
Answer:
true
Explanation:
a tundra is a cold environment
Answer:
im wasting your time
Explanation:
Compare antibacterial spectrum of amoxicillin (Amoxil) to amoxicillin/clavulanate (Augmentin). Adding a beta-lactamase inhibitor, like clavulanate, increases coverage against:A. Gram negative and anaerobic pathogensB. Gram positive pathogensC. MRSA
Answers
Augmentin (amoxicillin / clavulanate) is an antibiotic that contains both amoxicillin and potassium clavulanate. It is used to treat several bacterial illnesses. Amoxil (amoxicillin) is a penicillin antibiotic that is used to treat a wide range of bacterial infections.
Augmentin can cure the same germs as amoxicillin, but it is also effective against other more difficult-to-treat diseases, such as: Infections of the sinuses. Infections of the ears. Bacterial infections linked to COPD.
Broad-spectrum antibiotics, such as doxycycline, azithromycin, amoxicillin and clavulanic acid, mupirocin, and fluoroquinolones, target a broad range of gram-positive and gram-negative bacteria, whereas narrow-spectrum antibiotics, such as vancomycin, fidaxomicin, and sarecycline, target a narrow range of clinically important bacteria.
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During sexual reproduction if the cell divides three times, how many "new" cells do you have?
1.) 8
2. ) 4
3.) 1
4. ) 2
Answers
What type of testing allows lab technicians to test pathogenic bacterial specimens for reaction with known antibodies
Answers
Answer:
Serological tests check for agglutination (clumping) of bacteria in the presence of known antibodies. This can rapidly determine the strain of a pathogen causing disease in a patient.
Explanation:
When grouping and identifying living things, the classification is based on _____.
similarities and differences
the anatomy of the living thing
the way the living organism multiplies
Answers
When grouping and identifying living things, the classification is based on similarities and differences (Option A).
Tаxonomy is the study of relаtionships between living things аnd the formаl clаssificаtion of orgаnisms into groups bаsed upon those hypothesized relаtionships. Orgаnisms аre clаssified bаsed upon their similаrities аnd differences. А single tаxonomic group is cаlled а tаxon. А number of tаxonomic groups аre cаlled tаxа which is the plurаl of tаxon. А clаssificаtion of living things bаsed on the system of biologicаl kingdoms is the wаy in which science clаssifies living things аccording to their аncestry over the course of evolution.
The similarities and differences include factors such as physical characteristics, genetic traits, and behavior. The anatomy of the living thing and the way the living organism multiplies are also taken into consideration, but they are not the sole basis of classification.
Thus, the correct option is A.
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PSYCHOLOGY: Personal characteristics such as one’s __________ and __________ are often stable throughout one’s lifetime. A. temperament . . . emotionality B. attitude . . . intelligence C. temperament . . . attitude D. emotionality . . intelligence
Answer: A. temperament . . . emotionality
Answers
Answer:
A : temperament . . . emotionality
Explanation:
A scientist was interested in knowing how the amount of sleep a student gets the night before an exam affects the score that a student gets on the exam. he divided his subjects (students) into 3 groups. group a took the exam after sleeping 6 hours. group b took the test after sleeping 8 hours (normal amount). group c took the test after sleeping 10 hours. he then looked at the test scores to see if there was any difference between the 3 groups. what is the independent variable in this experiment?
Answers
The independent variable in this experiment is the amount of sleep that the students got the night before the exam. The scientist divided his subjects into three groups: group A who got six hours of sleep, group B who got eight hours of sleep (the normal amount), and group C who got ten hours of sleep.
By assigning different amounts of sleep for each group, he was able to assess whether the amount of sleep was having an effect on the test scores that the students earned. By having a control group of students who received the normal amount of sleep, the scientist was able to isolate the amount of sleep as the only independent variable in the experiment.
In other words, from the results acquired from the experiment, the scientist can determine whether there is a correlation between the amount of sleep and the test scores that the students earned.
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22.
Select the biochemical molecules, chosen
from the list below, that is best described
by the statement shown.
A type of nucleic acid that contains
paired bases and forms a double
helix
A. mRNA
C. DNA
B. tRNA
D. ATP
Answers
Answer:
C
Explanation:
DNA has a double helix structure and has paired bases G,C and A,T
Influenza is a bacterial infection whose symptoms include sore throat and fever. True or False
Answers
Answer: Im positive is true i hope this helps
Explanation: i leanded this last year
1. list the energy sources used to synthesize atp for muscle contraction.
Answers
ATP or Adenosine Triphosphate is the primary source of energy for most cellular processes including muscle contraction. ATP is synthesized through several energy sources during muscle contraction.
The sources of energy that synthesize ATP for muscle contraction are as follows:Glycolysis: This process occurs in the cytoplasm and it converts glucose or glycogen into pyruvate. The energy released in this process is used to synthesize ATP. The net gain from glycolysis is two ATP molecules. Krebs cycle or Citric acid cycle: This cycle occurs in the mitochondria and it generates ATP by oxidizing acetyl-CoA to carbon dioxide. The total yield of ATP from one glucose molecule is 36 or 38 ATP molecules depending on the source of glucose. Electron transport chain: This is the final stage of oxidative metabolism that occurs in the inner membrane of mitochondria. During this process, electrons are transferred from one molecule to another and this generates a proton gradient. This gradient is used by ATP synthase to synthesize ATP from ADP and inorganic phosphate (Pi). The yield of ATP from one glucose molecule in this process is 28 or 32 ATP molecules depending on the source of glucose.
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Write three advantages of breathing through the nose than through the mouth
Answers
Answer:
reduce exposure to foreign substances. humidify and warm inhaled air. increase air flow to arteries, veins
Gastroparesis is a condition that causes a partial paralysis of the stomach. The stomach has reduced ability to contract to move food through the digestive system. Some common symptoms of gastroparesis are abdominal pain, nausea, and feeling full after eating a small amount of food. What would be the most likely cause of this condition? A. damage to nerves that control the stomach B. lack of pancreatic juices and bile C. lack of enzymes in the small intestine D. damage to the mucus lining of the stomach
Answers
Symptoms of this condition include paralysis of the stomach muscles. Muscles are controlled by nerve impulses, therefore the most likely cause for this condition is (A.) damage to nerves that control the stomach
B. lack of pancreatic juices and bile -> this will lead to food not being chemically brokend down properly in the stomach and oils not mixing with water leading to malnutirion
C. Lack of enzymes in the small intestine -> this will also lead to food not being chemically digested and malnutrition
Which best details the movement of energy
through aerobic cellular respiration?
Answers
Answer:
Heat energy is absorbed as chemical potential energy is transferred from oxygen molecules to ATP molecules. Heat energy is released as chemical potential energy is transferred from oxygen molecules to ATP molecules.
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Plant cells have a large central vacuole that hold water and can swell, which then results in other cell organelles being pushed against the cell membrane. Which of the following best explains how being close to the cell membrane could benefit a cellular process?
A. Nucleotides would have more access to space in the cytosol and become more concentrated, benifiting DNA replication.
B. Ribosomes would have more access to space in the cytosol and make more proteins, benifiting protein synthesis.
C. Mitochondria would have more access to glucose to convert into ATP, benifiting cellular respiration.
D. Chloroplasts would have more access to light energy to convert carbon dioxide and water in glucose, benifiting photosynthesis.
Answers
hi
D
is true
Well now check yourself please
Chloroplasts would have more access to light energy to convert carbon dioxide and water into glucose, benefiting photosynthesis. So the correct option is D.
What is a central vacuole?
A core vacuole that is hydrated. This organelle, which is surrounded by a single membrane, serves as a reservoir, waste disposal site, storage area, and even a way to maintain the cell's form. When the vacuole is completely filled with water, it pulls the cytoplasm into a narrow strip next to the membrane and expands like a balloon filled with water.
This turgor pressure maintains the cell's rigidity and gives plant structures like leaves their distinctive shapes. Long-term dehydration of a plant causes the central vacuoles to lose water, the cells to deform, and the entire leaf to wilt. In the vacuole, plants frequently store carbohydrates, ions, certain proteins, and sporadically pigments.
For instance, the pigments created and deposited in the central vacuole give flower petal cells their distinctive hue. In addition to making the plant poisonous to herbivorous animals, poisonous substances that might injure the cytoplasm are discharged into the vacuole.
Therefore, the correct option is D.
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How are alleles and traits related?
Answers
Genes are DNA fragments and code for characteristics. There are different forms of one gene, which are the alleles. Each allele codes for a trait. C) Alleles are distinct versions of genes, and they code for traits, which are distinct forms of characteristics.
What are genes and alleles?
Genes are the hereditable DNA fragments that transmit the information needed to specify traits. This information passes from parents to offspring, generation to generation.
Genes are physically placed and arranged in the chromosomes. Each chromosome contains too many genes that might vary in length.
Alleles are the variants of the same gene. They code for the same feature but different trait. For instance, one diallelic gene might code for coat color. One of the alleles codes for black color, while the other allele codes for brown color. Both alleles determine color, but express different color.
So, to answer the question, alleles code for different traits.
Option C is correct.
Alleles are distinct versions of genes, and they code for traits, which are distinct forms of characteristics.
In our example,
Characteristic: coat colorTraits: Black coat and brown coat.One diallelic gene codes for coat color.Dominant allele (one version of the gene) codes for blackRecessive allele (another version of the gene) codes for brown
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Approximately how many Americans don’t know they are hiv positive ? 1/31/51/61/10
Answers
The US has aproximately 1.2 million people living with HIV in the country, being 240,000 not knowing they are infected. Therefore, the amount of Americans that don't know they are HIV positive is nearly 1 in 5 people (1/5).
Data for the antler size of the Texas longhorn is shown here. These were introduced from Europe to the United States several hundred years ago. Over that time, the population of longhorns has evolved. Which explanation(s) could apply to the scenario shown here? Select ALL that apply.
Answers
Answer:
A,B,E
Explanation: usa testprep
When a population is introduced in an area, the genetic variation thus introduced will lead to marked evolution in the species.
What is Evolution?The question is incomplete but I will help you the much I can. Let us recall that evolution is the sum total of all the gradual changes that occurs in an organism untill it arrives at its present form.
It should be know that when a population is introduced in an area, the genetic variation thus introduced will lead to marked evolution in the species.
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one of the functions of the pulmonary system is the: question 10 options: expelling of bacteria. exchange of gases between the environment and blood. movement of blood into and out of the capillaries. principal mechanism for cooling of the heart.
Answers
The pulmonary system's role is to exchange gases between the blood and the outside environment. The pulmonary system is specifically in charge of supplying the body with oxygen and exhaling carbon dioxide.
What one purpose does the pulmonary system serve?A term used to describe how well the lungs facilitate breathing.While breathing, oxygen is drawn into the lungs, where it is transported to the body's tissues by the blood.
Which of the following describes the pulmonary system's principal or most crucial function?The primary job of the lungs, which are the building blocks of the respiratory system, is to enable gas exchange between the environment and the blood.
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1. Why didn't all of the substances exit your model kidney to enter the "filtrate"?
2. Shoudl glucose, erythrocytes, leukocytes, and protein appear in the urine in large amounts? why or why not? What happens to each of these substances in the kidney?
3. What other substances would you expect to find in the "filtrate" surrounding your model kidney? explain
4. The presence of blood and protein in the urine can indicate inflammation of the glomerulus? Why would glomerular inflammation result in these substances passing into the filtrate and the urine? (Hint: What happens to capillaries during an inflammation response?
Answers
The substances that were filtered out of the blood by the glomerulus did not enter the filtrate because they were too large to pass through the pores in the glomerular basement membrane. The glomerulus is designed to filter out large molecules such as proteins and blood cells, while allowing smaller molecules such as glucose and water to pass through.
Glucose, erythrocytes, leukocytes, and protein should not appear in the urine in large amounts because these substances are typically reabsorbed by the kidneys. However, if the glomerular filtration rate is decreased or if there is damage to the glomeruli, these substances may be able to pass through the pores in the glomerular basement membrane and enter the filtrate.
Other substances that would be expected to be found in the filtrate surrounding the model kidney include urea, creatinine, and other waste products that are filtered out of the blood by the glomeruli. These substances are then transported down the nephron and excreted in the urine.
The presence of blood and protein in the urine can indicate inflammation of the glomerulus. Inflammation of the glomerulus can result in the leakage of blood and protein through the pores in the glomerular basement membrane and into the filtrate. This is known as glomerular hemorrhage or proteinuria, respectively. The inflammation response can cause the capillaries in the glomerulus to become damaged or leaky, allowing blood and protein to pass through the basement membrane and into the filtrate.
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_________ neurons do not have clearly differentiated axons and dendrites. ________ are glia cells that protect neurons from pathogens via phagocytosis.
Answers:
Anaxonic; Astrocytes
Anaxonic; Microglia
Bipolar; Astrocytes
Bipolar; Microglia
Answers
Anaxonic neurons do not have clearly differentiated axons and dendrites. Microglia are glia cells that protect neurons from pathogens via phagocytosis.
Anaxonic neurons are found in the brain and some sensory organs, and their functions include local processing and integration of signals within a small region. Microglia are a type of glial cell that play a crucial role in maintaining the health of the nervous system by monitoring the environment for potential threats, such as pathogens and damaged cells.
They act as the primary immune cells in the central nervous system and perform phagocytosis to remove pathogens and cellular debris, thus helping to maintain a healthy neural environment.
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Plz help!! Which substance is most likely represented by y?
Answers
Answer:
glucose
Explanation:
x is carbon dioxide and y is glucose because it's the photosynthesis equation
Answer:
Glucose
Explanation:
The process that occurs in the chloroplast is called photosynthesis. Plants use this process to make food for themselves. This process is:
Carbon dioxide+ water + light energy —> oxygen and glucose
In the photo, we are looking for y. y is next to oxygen, so we can assume that y and oxygen are the products of photosynthesis.
The other product of photosynthesis is glucose.
Therefore, glucose is the correct answer.
How would a functional sociologist view the Burqa?
Answers
Answer:
A conflict sociologist would most likely view the Burqa as a sign of “power over women” or inequal rights. Since it is only women that are required to wear it, it could be viewed as men being superior.
The Burqa is a veil that is used to cover the whole face, leaving only a little opening for sight and is worn by women. It is usually associated with the people of Islamic faith.
A functional sociologist is a person from the school of thought that believes that society is a complex system that each part must work together for a better functioning society.
Therefore, a functional sociologist will most likely view the Burqa as:
A restrictive clothing that should be abolishedA cruel way to treat womenA symbol of control over a womanRead more here:
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Summarize the path of an oxygen molecule from the nose to the bloodstream the
Answers
Answer:
The oxygen molecule passes through the wall of the alveoli and enters inside tiny blood vessels called capillaries where exchange occurs. A protein called hemoglobin in the red blood cells then carries the oxygen around your body.
Explanation:
The thin muscular bands of the muscular layer of the large intestine are called the ________.
Answers
The thin muscular bands of the muscular layer of the large intestine are called the teniae coli.
The wall of the large intestine contains the similar kinds of tissue which are present in other regions of the digestive tract. However, there are a few discriminating features. The mucosa contains a large number of goblet cells but lacks presence of any villi.
The longitudinal muscle layer, even though existent, is not complete. The longitudinal muscle is restricted to three definite bands, called teniae coli, which cover the full extent of the colon.
Contraction of the teniae coli applies force on the wall and results in the formation of sets of pouches, known as haustra, across the colon.
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Which two organisms are the most closely related?
Answers
Answer:
Amoeba and Euglena
Explanation:
Amoeba are any of numerous freshwater, marine, or parasitic one-celled protozoa of the order Amoeboid, characterized by a granular nucleus surrounded by a jellylike mass of cytoplasm that forms temporary extensions, or pseudopodia, by which the organism moves, engulfs food particles, and forms food vacuoles.
Euglena refers to a genus of green fresh water protozoans having a reddish eyespot and a single flagellum, found especially in stagnant waters.
Since they both pertain to the Phylum Protista and exhibit comparable traits, Amoeba and Euglena are more closely related to one another than any other combination of organisms.
The two organisms that are closely related to each other more than any other pair of organisms are Amoeba and Euglena.
The amoeba and euglena both are singular-cell organisms. Amoeba and Euglena Both are eukaryotes having membrane-bound nuclei, other shared eukaryotic features, and chromosomes. Both are members of Kingdom Protista.
Amoebas are any of numerous freshwater and are characterized as small size grain nucleus which is surrounded by a jelly-like mass of cytoplasm that forms the ability to alter its shape, primarily by extending and retracting pseudopods. Euglena refers to a group of green freshwater protozoans, the cells are tear-drop shaped with a blunt end which is a head, and a pointed end.
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False sensory perceptions that often take the form of hearing voices or seeing things that are not really there are called _______________
Answers
Sensory perception includes the processing of stimuli in the environment. The fake sensory perceptions that often take the form of hearing voices or seeing things that are not really there are called hallucinations.
What is a hallucination?Hallucinations are the sensory perceptions that may look real but are actually imaginary created by the mind.
There can be a variety of causes for hallucination, some can be listed below:
Mental health.Parkinson's disease.Drugs and alcohol.Anxiety, depression, etc.Thus, the fake sensory perceptions that often take the form of hearing voices or seeing things that are not really there are called hallucinations.
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What is the total surface area of a human lung
Answers
Answer:
the total surface area of a human lung IS 70 TO 75 square meters
Explanation:
Estimates of the total surface area of lungs vary from 50 to 75 square metres (540 to 810 sq ft); although this is often quoted in textbooks and the media being "the size of a tennis court"
Answer:
50 to 75 square meters
Explanation:
The movement of blood to the lungs and other tissues of the body is accomplished by a specialized, muscular organ called the heart. The normal human heart consists of:
Answers
The normal human heart consists of four chambers, two atria, and two ventricles. The right atrium receives the blood from the body and passes it on to the right ventricle, which pumps it to the lungs to remove carbon dioxide and replenish oxygen levels.
The left atrium receives the oxygen-rich blood from the lungs and passes it on to the left ventricle, which pumps it into the body’s systemic circulation. The heart is also comprised of a conduction system, which consists of the sinoatrial (SA) node, atrioventricular (AV) node, bundle of His, and Purkinje fibers.
These structures are responsible for initiating and transmitting electrical impulses that coordinate and regulate the heart’s contraction and relaxation. Additionally, the heart is surrounded by a sac called the pericardium, which protects and lubricates the heart as it moves within the chest. Overall, the heart’s primary function is to pump and circulate blood throughout the body to deliver oxygen and nutrients and remove metabolic waste products.
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