assuming that these traits are sorting in a mendelian way, and given that you collected 440 flies from your cross, how many flies do you expect that have just bristly hair (1) ; bristly hair and dumpy wings (2)
Answers
Asuming that these traits are sorting in a mendelian way, and given that you collected 440 flies. There will be 97 bristly hair flies and 125 bristly hair dumpy wing flies.
Mendelian inheritance refers to certain patterns of how traits are transmitted from parents to offspring.These broad patterns were created by the Austrian monk Gregor Mendel, who tested many pea plants in the 19th century.
In observational research, Mendelian randomization is a technique for examining the causal impact of a modifiable exposure on disease. It uses measurable variation in genes with known functions.
Phenylketonuria is an illustration of a Mendelian trait that affects humans and is passed down from parents to kids when both parents have the heterozygous (Aa) and homozygous (AA) conditions.
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Related Questions
In an ideal intercuspal position, the cusp tip of a permanent maxillary canine should contact.
a. the mandibular lateral incisor only
b. no other tooth
c. the mandibular canine only
d. the mandibular first premolar only
e. both mandibular canine and first premolar
Answers
Answer: b. no other tooth
Explanation:
How can a father's habits affect the health of an unborn child during prenatal development?
A) father's use of crack cocaine causes sperm mutations, such that two sperm are capable of fertilizing a single ovum.
B) father's nicotine intake produces DNA changes that are passed to the fetus on chromosome 23.
C) father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair.
D) father's use of alcohol or illegal drugs can affect his sperm, which in turn may lead to chromosomal damage that affects the fetus.
Answers
However, father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair. This statement is not true, which makes option C incorrect.Father's use of crack cocaine causes sperm mutations, such that two sperm are capable of fertilizing a single ovum.
The father's use of alcohol or illegal drugs can affect his sperm, which in turn may lead to chromosomal damage that affects the fetus. This is how a father's habits can affect the health of an unborn child during prenatal development. It is important to note that the consumption of drugs, including alcohol, by expectant fathers poses significant risks to the developing fetus. Maternal alcohol or drug use, such as marijuana or cocaine, has long been known to have detrimental effects on the developing fetus, however, the negative effects of paternal alcohol or drug use on the fetus have only recently come to light. Nicotine intake does not produce DNA changes that are passed to the fetus on chromosome 23. Therefore, option B is incorrect . Barbiturates are a class of drugs that are used to treat a range of conditions, including anxiety and sleep disorders. They can be dangerous when taken improperly, leading to dependence and addiction. However, father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair.
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NEED ANSWER PLS DUE SOON
Answers
Red blood cells in seawater would shrivel up because there is more salt concentration than human blood cells can handle.
Sorry I can't answer for 3 but the thyroid gland is the main organ for hormones so it definitely has something to do with that
Sally is pregnant and worried that she might be Rh incompatible with her
unborn child after remembering what she learned in her high school
biology class. Sally knows she is Rh negative (the recessive phenotype) and
her husband is Rh positive, but is heterozygous. What chance do they have
of their potential child being Rh positive?
Answers
Answer:
The Rh- allele is recessive. So sally is Rh-Rh- and her husband is Rh+Rh-.
The possible genotypes for Punnet's square are: Rh+/-,Rh+/-,Rh-/-,Rh-/-
So the chance to have an Rh+ child is 50%
What has changed in this room since you walked in?
Answers
Answer:
One more person is in the room
Explanation:
a person increased in the room
the skin secretes substances in perspiration such as sodium, chloride, urea, and ammonia which is similar to what other body system?
Answers
The kidneys are the body system that also secretes substances in urine such as sodium, chloride, urea, and ammonia, similar to the skin's secretion in perspiration. Both systems help to regulate the body's water balance and excrete waste products.
What distinguishes perspiration from sweating?Sweat is a less formal word than perspire. There is no distinction between them in general. These both refer to liquid drops that form on your skin while you're hot. Yet, compared to perspiration, sweat is a more biological and colloquial word.
What triggers sweating?The body uses sweat as a means of cooling off. When your body temperature rises, the neurological system naturally activates your sweat glands. When you're anxious, sweating also happens, especially on your palms. Erroneous nerve signals that produce the overactivity of eccrine sweat glands in primary hyperhidrosis.
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can y’all pleaseee help me
Answers
T/F: A blastocyst is a single layer of embryonic epithelial cells.
Answers
A blastocyst is not a single layer of embryonic epithelial cells. The given statement is false.
In fact, a blastocyst is an early-stage embryo that has grown and divided multiple times, resulting in a complex structure with several distinct cell types.
Blastocyst formation occurs around 5-7 days after fertilization in humans and many other mammals. At this stage, the embryo consists of about 100-200 cells and is composed of an inner cell mass (ICM) and an outer layer of cells called the trophoblast. The ICM will go on to form the embryo proper, while the trophoblast will form the placenta and other supportive tissues for the developing embryo.
The trophoblast is not a single layer of cells but rather a highly organized structure consisting of several layers and cell types. The outermost layer of the trophoblast, called the syncytiotrophoblast, is responsible for implanting the blastocyst into the uterine lining and establishing the early stages of placental development. Overall, the blastocyst is a complex and dynamic structure that represents a critical step in early embryonic development.
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(point drop: Rare)
Why are bananas curved?
Answers
Answer:
They do this because bananas are negatively geo-tropic.
Explanation:
This means that they grow away from the pull of gravity, as opposed to turning upward toward the sun.
Answer:
they grow towards the sun
Explanation:
The growth of the worlds populationand the increased use of
toxic chemcisals have reduced the ocean ability to
renew itself
produce oxygen
serve as a freshwater supply
retain solar energy
Answers
Answer: toxic chemicals have reduced the ocean ability to
renew itself
Explanation: In addition to increased use of toxic chemicals, what has reduced the ocean's ability to renew itself?
Increased world population
(GIVING BRAINILEST) Which characteristic do stable ecosystems tend to have s
Answers
Answer:
C
Explanation:
I got it right on my test:)
: these results most likely indicate that . . . choose one: a. the compound may become mutagenic after being metabolized by the rat liver extract. b. the compound promotes mutations in rat liver enzymes. c. the compound was detoxified by rat liver enzymes. d. rat liver extract is highly mutagenic. e. none of the other choices is correct.
Answers
The correct answer is d. rat liver extract is highly mutagenic.
Using bacteria, the Ames test is a standard technique for determining if a certain chemical may result in changes in the DNA of the test organism. It is a biological test that is officially employed to evaluate a chemical compound's potential for mutagenicity. any factor that results in a mutation (a change in the DNA of a cell). Mutagens may injure cells and cause some illnesses, including cancer, by altering DNA. Radioactive elements, x-rays, UV rays, and certain compounds are examples of mutagens.The mutagenic chain reaction (MCR), discovered by Gantz and Bier, induces homozygous mutations by autocatalysis. To achieve homozygosity for the characteristic, MCR employs the first mutant allele to trigger a mutation in the allele on the opposite chromosome.
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Which of the following statements is/are correct concerning the importance of One Health in Global Health? their can be one answer or more than one! will mark brainlist if correct!!!!!!!!!!!! I MEANT TO PUT THIS UNDER HEALTH
A. The so called weak spot in the cycle of transmission of a zoonotic infection is always at the human level
B. Vaccinating humans is more cost-effective for tackling zoonotic diseases such as rabies or MERS-CoV
C. One Health brings vets and zoologists more prominently to the Global Health arena
D. The One Health approach is key to address Global Health challenges at the human-animal-ecosystem interface such as emerging zoonotic diseases
E. Epidemiological investigations based on the One Health approach analyse comprehensively the cycle of transmission of an infection to identify the so called weak spot of the system
Answers
B, D, and E are correct concerning the importance of One Health in Global Health.
What is Global Health?Global health is a field of health focused on improving the health of people worldwide. It looks at the health of populations and how health systems work, paying special attention to the most vulnerable populations. It examines how global issues such as poverty, disease, environmental degradation, and international conflict affect the health of people. Global health looks at how different cultures and countries approach health, how health problems are addressed, and how health systems are developed, funded, and improved.
Vaccinating humans is more cost-effective for tackling zoonotic diseases such as rabies or MERS-CoV. The One Health approach is key to address Global Health challenges at the human-animal-ecosystem interface such as emerging zoonotic diseases. Epidemiological investigations based on the One Health approach analyse comprehensively the cycle of transmission of an infection to identify the so called weak spot of the system.
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the ripened ovary of a flower, which is adapted to disperse seeds, is called a(n)…
Answers
Fruit. Several plant species rely heavily on their fruits for seed distribution. Dehiscent fruits, like poppy capsules, usually include seeds that are spread directly from the fruits, which may still be attached to the plant.
The fruit only serves to spread its seeds. Fruit seeds need to be spread far from the parent plant so they can grow in a favourable environment with fewer competitions.
While some fruits can disseminate on their own thanks to internal systems, others need the assistance of wind, water, and animals. The structure, chemistry, and size of the seed are altered to aid in dissemination. Fruit that is distributed by wind is light and may have wings. like the dandelion, which has hairy, light structures that are good for dissemination.
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What would make the results of this experiment reliable?
Answers
HOPEFULLY THIS HELPS
THE ANSWER IS
When a scientist repeats an experiment with a different group of people or a different batch of the same chemicals and gets very similar results then those results are said to be reliable. Reliability is measured by a percentage – if you get exactly the same results every time then they are 100% reliable.
HELPPPPP OUT
PLZZZZZZ
Answers
Answer:
B. Single replacement reaction
Explanation:
A single displacement reaction is a chemical reaction in which one element is replaced by another in a compound.
Please help me it’s a glacial lab and it’s nine pages please help I’m using all my points for this it’s EARTH SCIENCE 9th grade
Answers
Explanation:
I just wanted the points
Rosie’s bank balance at the start of the week was $254. She made 3 withdrawals for $25 each. How much did she have in her account after the three withdrawals?
Answers
Answer:
179 dollars
Explanation:
What do you use for heartbeats per minute
Answers
Answer:
It is largely used to gather heart rate data while performing various types of physical exercise. Measuring electrical heart information is referred to as Electrocardiography (ECG or EKG). Medical heart rate monitoring used in hospitals is usually wired and usually multiple sensors are used.
Explanation:
Which of these are one of the branches of
Science?
A. Scientific observation
B. Scientific Method
C. Measurement tools
D. Life Science
Answers
Answer:
c.measurement tools
Explanation:
it's obviously not a branch of science
Answer:
D. life science
a is part of the scientific method
b is part of all science
c is tools used in science.
what is law of segregation definition biology?
Answers
Alleles, or variations, of genes exist. An organism's appearance is controlled by a dominant allele that conceals a recessive allele.
When an organism produces gametes, a single randomly chosen gene copy is given to each gamete. The law of segregation is what is known as this. The Principle of Segregation explains how reproductive cells are divided into pairs of gene variants. Gregor Mendel made the first observation of the segregation of alleles, or gene variants, and the traits they are associated with, in 1865. Each diploid individual contains two alleles (copies) for a certain trait, according to the law of segregation. A diploid organism results from each parent randomly passing an allele to their children.
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Regardless of the physical traits that are determined by genes, an organism must receive the proper
to develop normally,
O genes
O cells
food
exercise
Answers
Answer:
food
Explanation:
I think food is the answer because food has alot of nutrients that help in the proper development of the body.
I hope this helps
Why is monitoring
invasive species?
an important part of controlling
a. Monitoring can prevent the spread of invasive species.
b. Monitoring can identify new populations of invasive
species while they are still small.
c. Monitoring can maintain the historic state of a
landscape.
d. Monitoring can assess the impacts an introduced
species could have on a new environment.
Answers
Answer:
A and B are correct
Explanation:
a. Monitoring can prevent the spread of invasive species: When invasive species are detected early, before they have had a chance to establish large populations, it may be possible to eradicate them or at least limit their spread. Monitoring helps to detect these species early, which is essential for effective management.
b. Monitoring can identify new populations of invasive species while they are still small: Monitoring can help identify new populations of invasive species when they are still small, making them easier to control. If left unchecked, small populations can grow quickly and become much more difficult to control.
c. The option c is not directly related to the importance of monitoring invasive species.
d. Monitoring can assess the impacts an introduced species could have on a new environment: Monitoring can help to assess the impacts that an introduced species could have on a new environment, which is important for developing effective management strategies. By understanding the potential impacts of a species, managers can develop more targeted and effective management plans to control the spread of the species and minimize its impacts on the environment.
During which phase of meiosis are sister chromatids separated and pulled to opposite sides of the cell?
telophase of meiosis I
prophase of meiosis II
anaphase of meiosis II
metaphase of meiosis I
Answers
Answer:
Anaphase of meiosis II
Explanation:
During Anaphase II, the spindle fibers pull the sister chromatids apart, toward the opposite poles of the cell. I recommend searching Anaphase II up and looking at a picture. It will give you a better visual understanding.
I'm 13 and I'm 100 lbs, 5,4 am I fat?
Answers
Answer:
Not at all !
Explanation:
An insertion mutation usually causes more defects than a point mutation because insertion mutations _____.
Answers
An insertion mutation typically causes more defects than a point mutation because insertion mutations involve the addition of extra nucleotides into the DNA sequence.
This insertion disrupts the reading frame of the gene, leading to significant changes in the subsequent amino acid sequence during protein synthesis. As a result, the protein produced from the mutated gene may have an altered structure or function, potentially leading to more severe consequences.Insertion mutations can have various effects on the protein. They can introduce premature stop codons, resulting in a truncated and non-functional protein. Alternatively, the insertion can shift the entire reading frame downstream, leading to a completely different sequence of amino acids. This disruption often renders the protein non-functional or significantly impairs its normal activity.In contrast, point mutations involve the substitution of a single nucleotide, which may or may not result in a change of amino acid. While point mutations can still have detrimental effects, they are generally less disruptive than insertion mutations, as they do not alter the reading frame or introduce significant changes to the protein structure.For more questions on DNA sequence
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1. Describe what occurs in the body of a type 1 diabetic after they consume a carbohydrate-heavy meal. In your response, include the following terms
Metabolized, Glucose, Insulin, Cell receptors, Pancreas, Energy
Answers
The process which would occur in the body of a type 1 diabetic after they consume a carbohydrate-heavy meal is:
The digestive system tries to break down the complex sugars which increases the blood sugar level which leads to the production of insulin to maintain the blood sugar level throughout the body.A Type 1 diabetic person is one who has been diagnosed with the level of diabetes, where the pancreas does not produce enough insulin to control the sugar levels of the body.
With this in mind, when such person consumes a high carbohydrate meal, it means that he has ingested complex sugars which would be difficult for the digestive system to break down which would overwork the pancreas, but as there is little or no insulin production, then there would likely be health complications.
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How do cells at the completion of meiosis compare with cells that are in prophase of meiosis I? (A) The cells have half the number of chromosomes and half the amount of DNA. (B) The cells have the same number of chromosomes and half the amount of DNA. (C) The cells have half the number of chromosomes and one-fourth the amount of DNA. (D) The cells have half the amount of cytoplasm and twice the amount of DNA.
Answers
Cells at the completion of meiosis compare with cells that are in prophase of meiosis I is (A) The cells have half the number of chromosomes and half the amount of DNA.
The correct option is (A).
The cells produced at the end of meosis cell division have half the number of chromosomes (termed as Haploid), so they will have half the number of chromosomes but same DNA as that of the parent cell as DNA divides and makes a copy of the parent cell DNA.Meiosis is a form of cell division of germ cells that creates gametes such as sperm or egg cells in sexually reproducing animals. It consists of two rounds of division that result in four cells with just one copy of each chromosome (haploid). Prior to division, genetic material from the paternal and maternal copies of each chromosome is crossed across, resulting in novel code combinations on each chromosome. During fertilisation, the haploid cells generated by meiosis from a male and female will unite to form a zygote, a cell with two copies of each chromosome.To learn more about Meiosis.
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in 2-3 sentences, describe how the bird population changed over the 5 years of feeding and reproducing.
Answers
The bird population may have changed over the 5 years of feeding and reproducing ide to an environmental constraint that led to the increase of adaptive alleles in the new environmental conditions.
What are adaptive alleles?Adaptive alleles can be defined as gene variants that are present in the original population and they can increase their frequency in presence of a new environmental condition and or factors.
Therefore, with this data, we can see that adaptive alleles can dramatically increase the frequency in a population in response to changes in the environmental conditions.
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ILL GIVE U 45 BRAINLY AND MARK BRAINLEST IF ITS CORRECT
