40 points! PLEASE HELP!!!
1. A brown rooster is mated with a brown chicken and they have five offspring. Two are brown and three are white, which is a recessive trait. What is the most likely explanation for this?
a) All of the white chickens carry a mutation.
b) Feather color is not hereditary.
c) Both parents carried the trait for white feathers.
d) Those chicks had less time to develop in the egg.
2. Wild tomatoes are small and green. What is one way new traits that affect size and color can occur?
a) Cloning
b) Mutation
c) Irrigation practices
d) Asexual reproduction
3. Complete the Punnett square below and choose the probability of the offspring.
Parent 1: Mm
Parent 2: Mm
M m
M
m
a) 50 percent MM and 50 percent mm
b) 25 percent MM, 50 percent Mm, and 25 percent mm
c) 100 percent Mm
d) 50 percent MM, 25 percent Mm, and 25 percent mm
Answers
Answer:
1c) Both parents carried the trait for white feathers.
2b) Mutation
3b) 25 percent MM, 50 percent Mm, and 25 percent mm
The white feathers trait which is recessive is present in both the parents that results into more number of recessive offsprings. Thus, the correct options are 1(C), 2(B), and 3(B).
What are Traits?Traits are the characters which are controlled by alleles. For each trait in an organism a pair of alleles is present. The alleles can be dominant or recessive based upon the Mendel's law of Dominance.
Mendel's Law of Dominance states that the character which is present in all the offsprings in the F1 generation is dominant character and the in F2 generation, both the characters are shown in the 3:1 ratio i.e., 3 offsprings show dominant character whereas 1 show recessive character.
Mutations are the changes in the genomic sequences of an individual. It is due to change in the alleles responsible for that character. Mutations can be used to introduce new character in an organism. By the use of mutagens, mutations can be introduced in any organism.
When both the parents, then the probability of the offpsrings in F1 generation will be: 25% with MM, 50% with Mm, and rest 25% with mm.
Therefore, the correct options are 1(C), 2(B), and 3(B).
Learn more about Traits here:
https://brainly.com/question/1463051
#SPJ2
Related Questions
This cycle uses super-heated water from
underground to give us power
geothermal
solar
nitrogen
oxygen
Answers
The nucleus of an atom is composed of two subatomic particles,
and
Select one:
O a protons: neutrons
O b. protons, electrons
c. neutrons; electrons
O d. positron; negatron
e. norton; crouton
Answers
HURRYYYY PLEASE HELP ME I NEED IT RIGHT NOW!
Define groundwater and explain how it relates to the terms water table, aquifer, and confined aquifer.
Answers
Explanation:
Groundwater is water that occupies the zone of saturation within the ground. The water table is the upper limit of the groundwater. An aquifer is a body of porous rock or sediment saturated with groundwater. Groundwater enters an aquifer as precipitation seeps through the soil. It can move through the aquifer and resurface through springs and wells. Groundwater separated from atmospheric pressure by relatively impermeable material is termed confined groundwater. When such zones are penetrated by wells, the water rises above the point at which it was first found because a confined aquifer is under pressure exceeding that of atmospheric pressure.
If an organism has been placed in the phylum chordata, does it necessarily follow that it is also a member of the kingdom Animalia? Explain
Answers
Yes, it necessarily follows that an organism placed in the phylum Chordata is also a member of the kingdom Animalia.
What is kingdom Animalia?The kingdom Animalia is defined as consisting of multicellular, eukaryotic organisms that are heterotrophic (obtain their food by consuming other organisms) and lack cell walls. All members of the phylum Chordata are also multicellular, eukaryotic, and heterotrophic animals, which possess a dorsal nerve cord, a notochord, pharyngeal slits, and a tail at some point in their life cycle.
The presence of these characteristics places them in the phylum Chordata, which is one of the major phyla within the animal kingdom. Therefore, all organisms in the phylum Chordata are also members of the kingdom Animalia by definition.
Learn more about kingdom Animalia, here:
https://brainly.com/question/9031447
#SPJ9
In a Dihybrid cross, two heterozygous parents, AaBb x AaBb have an offspring. What is the ratio of the offspring??
Answers
In Excerpt from last regrets what does paragraph 5 reveal about paige?
Answers
In Excerpt from last regrets, the paragraph 5 revealed that Paige wants to avoid her grandparents. The Option B is correct.
What does paragraph 5 revealed about Paige?Paige Hook recounts in her book Last Regrets how her grandparents "made" her go fishing with her brothers. She describes how she "hated the boat," which was her grandparents' pride and joy. Despite her protests, she agreed to accompany them on the fishing trip. The Paragraph 5 revealed how she avoids her grandmother despite the fact that she called her name. Therefore, the Option B is correct.
Missing options "A.she fears going out on the lake. B.she wants to avoid her grandparents. C.she prefers the outdoors to coming inside. D.she wants to play with the neighborhood girls".
Read more about paige
brainly.com/question/25275010
#SPJ1
cytotoxic t cell activation by cell-mediated immunity results in the ______ and apoptosis of infected cells.
Answers
The cytotoxic T cell activation by cell-mediated immunity results in the lysis and apoptosis of infected cells. The mechanism of cell-mediated immunity is crucial in the defense against intracellular organisms like viruses and bacteria that infect cells.
The immune response begins when an antigen-presenting cell, or APC, presents an antigen to a T helper cell. T helper cells help activate cytotoxic T cells and other immune cells. Once cytotoxic T cells recognize the antigens presented by APC, they release proteins called perforins and proteases.
Perforins make holes in the cell membrane of infected cells. Proteases enter through the holes and break down proteins inside the cell. In the end, the infected cell undergoes lysis and apoptosis. This mechanism is crucial in the defense against intracellular pathogens such as viruses, as it destroys the infected cells, preventing the spread of the infection.
To know more about T cell activation, refer
https://brainly.com/question/29677766
#SPJ11
Which description properly describes a step involved in cellular respiration?
Glucose is created, then the energy gained is transferred to the energy molecule.
Carbon dioxide is combined with oxygen to make glucose.
Water is divided into carbon dioxide and glucose.
Oxygen is combined with the carbon atoms left from the glucose molecule.
Answers
Answer:
The asnwer is Glucose is created, then the energy gained is transferred to the energy molecule.
Explanation:
1. The cell membrane plays an essential role in the life of the cell. How does the cell membrane help maintain the health of the
cell?
Answers
The cell membrane can govern the processes of waste removal and bringing in necessary supplies by regulating what enters and leaves the cell.
Cells produce the waste molecule carbon dioxide during the process of cellular respiration. Due to the high concentration of carbon dioxide within the cell, it diffuses out of the cell and into the bloodstream (lower concentration). Carbon dioxide is transported by the blood to the lungs, where it can enter the air sacs and be expelled.
The cells require additional ingredients. Glucose is required by cells to supply energy. Through channel proteins in the membrane, glucose can pass from the bloodstream, where it is more concentrated, into cells, where it is less concentrated. This process is called facilitated diffusion.
To learn more about cell membranes here:-
https://brainly.com/question/13524386?referrer=searchResults
#SPJ9
How do extremophiles survive in the most extreme conditions?
Answers
There are several ways that extremophiles can survive in these extreme conditions like: Heat shock proteins, Membrane adaptations, Enzyme adaptations, DNA repair mechanisms and Metabolic flexibility.
Extremophiles are organisms that can survive and thrive in extreme environments that are inhospitable to most other life forms. These environments can include high temperatures, low temperatures, high pressure, low pressure, and other extreme conditions.
Heat shock proteins: Many extremophiles produce special proteins called heat shock proteins that help protect their cells from damage caused by high temperatures.
Membrane adaptations: Extremophiles often have membranes that are adapted to withstand extreme conditions. For example, some thermophilic bacteria have membranes that are rich in saturated fatty acids, which help maintain their structure and function at high temperatures.
Enzyme adaptations: Extremophiles often produce enzymes that are adapted to work at extreme temperatures or pH levels. These enzymes may have different amino acid sequences, and different shapes, compared to enzymes from non-extremophilic organisms.
DNA repair mechanisms: Some extremophiles have specialized DNA repair mechanisms that allow them to repair DNA damage caused by extreme conditions, such as high levels of radiation.
Metabolic flexibility: Extremophiles often have a wide range of metabolic pathways, which allows them to adapt to different nutrient and energy sources in their extreme environments.
To know more about extremophiles here
https://brainly.com/question/11409948
#SPJ4
a scientist is studying how chemical messages are transferred between cells of a developing embryo. in a research journal, the scientist draws a diagram to illustrate how the embryonic cells at the bottom of the early embryo are releasing chemicals to nearby cells to elicit protein production in the activated neighboring cells. a diagram representing embryonic cells releasing signaling molecules that are absorbed by nearby cells. if the signal is absorbed by the cell, it is transferred through the signal pathway into the nearby cells nucleus. which scenario is the most likely, regarding the signaling molecule?
Answers
3. only certain neighboring cells will be activated. Cells that are near to one another engage in paracrine signalling.
Here, a soluble signalling molecule released by one cell diffuses to a neighbouring cell. Chemical signals are used by cells to communicate. A transmitting cell will frequently exude these chemical signals, which are proteins or other substances, into the extracellular environment. They can reach nearby cells from there by floating like messages in a bottle. Desmosomes, tight junctions, and gap junctions are the three primary mechanisms by which cells join to one another. These kinds of junctions serve various functions and are distributed around the world.
The complete question is:
scientist is studying how chemical messages are transferred between cells of a developing embryo. in a research journal, the scientist draws a diagram to illustrate how the embryonic cells at the bottom of the early embryo are releasing chemicals to nearby cells to elicit protein production in the activated neighboring cells. a diagram representing embryonic cells releasing signaling molecules that are absorbed by nearby cells. if the signal is absorbed by the cell, it is transferred through the signal pathway into the nearby cells nucleus. which scenario is the most likely, regarding the signaling molecule?
1. all neighboring cells will be activated.
2. cells that have genetic variations will be activated.
3. only certain neighboring cells will be activated.
4. only cells that are already specialized will be activated.
Learn more about cell here:
https://brainly.com/question/30046049
#SPJ4
will somone pleas answer this
Answers
Answer:
Main idea
Explanation:
An increase in ocean salinity can increase ___, creating a current.
density
the Coriolis effect
wavelength
Answers
Answer:density
Explanation:
An increase in ocean salinity can increase density which results in creating a current. The correct option is A.
What is salinity?The concentration of dissolved salts present in water is meant to refer to as salinity.
In seawater, sodium and chloride are the most abundant ions, but magnesium, calcium, and sulfate ions are also present in significant concentrations.
An increase in ocean salinity can increase density which results in creating a current.
Thus, the correct option is A.
For more details regarding salinity, visit:
https://brainly.com/question/14575146
#SPJ2
Mad cow disease is caused by deformed proteins called prions. The disease is spread when meat from an infected cow is eaten. Prions can make normal proteins deform into more prions. After a few years, the brain of an infected person or cow looks like a sponge full of holes. Are prions considered organisms?
Answers
Answer:
No.
Explanation:
No, prions are not considered organisms because they are proteins that the infection to the surrounding cells and tissue. Prion is a type of protein that can change normal proteins in the brain into abnormal. Prion diseases can affect both humans and animals and spread to humans by eating infected meat products. So we can conclude that prions are not organisms, they are proteins.
different individuals with additional sex chromosomes display a range of phenotypes. one explanation for this is mosaicism. what leads to mosaicism?
Answers
Mosaicism refers to the presence of two or more distinct cell populations that arise from a single zygote. The reason that different individuals.
additional sex chromosomes display a range of phenotypes can be due to the occurrence of mosaicism.What leads to mosaicism These individuals tend to have fewer symptoms than those with XXY in all cells.Some individuals with Turner syndrome have a mosaic pattern of cells with a missing X chromosome and cells with a normal set of chromosomes.
These individuals tend to have fewer symptoms than those with Turner syndrome in all cells.In conclusion, mosaicism is the presence of two or more distinct cell populations that arise from a single zygote, and it can occur due to a genetic mutation that occurs after the formation of the zygote.
To know more about zygote visit:
https://brainly.com/question/29769026
#SPJ11
If you had to choose a singular source to get your energy from, what would you choose? Why?What are two benefits and downsides of your choice, and how would they impact vou?
Answers
If I had to choose a singular source to get my energy from, I would choose solar energy. It is renewable, abundant, and environmentally friendly.
Solar energy offers several benefits as a singular energy source. Firstly, it is renewable and widely available, harnessing the power of the sun's rays. This means it can be consistently accessed without depleting natural resources. Secondly, solar energy is environmentally friendly, producing clean electricity without greenhouse gas emissions or air pollution. It helps combat climate change and reduces reliance on fossil fuels. However, there are also downsides to relying solely on solar energy. One downside is its intermittent nature. Solar power generation depends on sunlight, so it is not consistently available during nighttime or cloudy periods. This necessitates energy storage systems or backup power sources. Another downside is the high initial installation cost. Solar panels and associated infrastructure can be expensive, although costs have been decreasing over time. These benefits and downsides would impact me as an individual. I would have access to clean, renewable energy, contributing to sustainability and reducing my carbon footprint. However, the intermittency of solar energy may require additional planning and investment in energy storage or backup systems, and the upfront costs could pose a financial challenge initially. Nonetheless, the long-term benefits and environmental advantages make solar energy an appealing choice.
learn more about abundant here:
https://brainly.com/question/13787727
#SPJ11
Which type of microscope produced the image of cilia?
Answers
Answer:Scanning electron microscopy
Explanation: Scanning electron microscopy (SEM) image of oviduct cilia. The central cell shows a primary cilium. Surrounding cells are multiciliated with motile cilia
Hope that helps!
Based on your knowledge of energy flow and light absorption, which color(s) of light will not provide energy for photosynthesis? (select all that apply) question 3 options: red orange green blue violet
Answers
Answer:
Red light has the longest wavelength and the least energy, while violet light has the shortest wavelength and the most energy.
Explanation:
Yw
Answer:
RED and BLUE
Explanation:
Special pigments in chloroplasts of plant cells absorb the energy of certain wavelengths of light, causing a molecular chain reaction known as the light-dependent reactions of photosynthesis. The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm).
Earth's atmosphere is important to living things because?
Answers
Hope this helps!
Contains the element phosphorus:
O Carbohydrate
O Lipids
O Proteins
O Nucleic Acid
Answers
Answer:
Nucleic acids
Explanation:
Proteins also contain nitrogen and often sulfur and phosphorus.( SOMETIMES)
but Nucleic acids contain the same elements as proteins: carbon, hydrogen, oxygen, nitrogen; plus phosphorous (C, H, O, N, and P).
Which organism would be classified as an arthropod? crab starfish snail earthworm
Answers
Answer: Crab, because an arthropod has no spine but an external skeleton.
GIVING 100 POINTS, NO JOKE ANSWERS. PLEASE HELP!
Environmentalists claim that climate change could lead to major biological change on Earth. Which of the following statements supports the biological predictions related to climate change?
Sea levels will fall, causing migration of 50% of the world's human population.
Carbon dioxide levels and temperature changes are direct related in the studies.
Studies show that atmospheric carbon dioxide has increased over the past 150 years.
The distribution of many organisms has already shifted as a result of warming.
Answers
Answer:
Sorry, all I know is it's not C
Explanation:
Maybe A but, I am just guessing at this point because I need help on this question too.
autonomic tone allows for a single division of the autonomic nervous system to control an organ by changing that division's activity levels up or down from baseline. true or false
Answers
"Autonomic tone allows for a single division of the autonomic nervous system to control an organ by changing that division's activity levels up or down from baseline. This statement is true.
Autonomic tone refers to the balance between the two divisions of the autonomic nervous system (sympathetic and parasympathetic), which allows a single division to control an organ by adjusting its activity levels up or down from the baseline. This balance helps maintain homeostasis in the body by adapting to changing conditions and regulating organ function.
The autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal. It contains three anatomically distinct divisions: sympathetic, parasympathetic, and enteric.
To learn more about nervous system https://brainly.com/question/7284755
#SPJ11
What does an ecosystem contain that a community does not?
OA. Biotic factors
OB. Multiple species
OC. Abiotic factors
OD. Multiple organisms
SUBMIT
Answers
An ecosystem includes both biotic (living) and abiotic (non-living) factors such as water, air, soil, temperature, and sunlight, whereas a community refers only to the multiple species of living organisms in a particular area. The correct option is C.
What is an ecosystem?An ecosystem is a region where a bubble of life is created by plants, animals, and other organisms interacting with the weather, environment, and other factors. Abiotic variables, or nonliving components, coexist with biotic components in ecosystems. Plants, animals, and other species are biotic factors.
An ecosystem contains abiotic factors that a community does not. An ecosystem includes both biotic factors (living organisms like plants, animals, and microorganisms) and abiotic factors (non-living elements like temperature, water, sunlight, and soil).
In contrast, a community only consists of the various interacting species (biotic factors) within a specific area, without considering abiotic factors.
Therefore, the correct option is C.
Learn more about Ecosystem here:
https://brainly.com/question/13979184
#SPJ5
can someone help me with this please?
Answers
Answer:
Outter space
Explanation:
because its uot
both the codons ui-ju and uuc specify the amino acid phenylalanine. what is the term for this phenomenon? a)unambiguous b)degenerate c)non-overlapping d)universas
Answers
The term for the phenomenon of both the codons ui-ju and uuc specify the amino acid phenylalanine would be degeneracy.
So, the correct option is B.
Because of the degeneracy of the code, many triplet codons can specify the same amino acid. A code where many words all have the same meaning. The genetic code is degenerate because there are several situations where various codons define the same amino acid, as is the case here where more than one codon specifies phenylalanine. a genetic code in which different codons can encode different amino acids.
The degenerate nature of the code results in many base triplets encoding the same amino acid. Every trio of nucleotides codes for one amino acid. There are just 20 amino acids and only 64 combinations of four nucleotides; hence, the coding is degenerate.
Learn to know more about Codons on
https://brainly.com/question/26929548
#SPJ4
The right temperature, ph, and precursor molecules could have allowed ______ molecules to form membrane-like structures.
Answers
Molecules that can form membrane-like structures are phospholip molecules.
Lipids are very important biomolecules in our food needs. Lipids are organic compounds that are insoluble in air but soluble in nonpolar solvents.
Phospholipids are derivatives of lipid compounds that contain a phosphate ester group. This molecule contains a nitrogenous base and other substituents, for example a glycerophospholipid has a group. Phospholipids are the main component of the membrane which is composed of a double layer. The lipid membrane is amphipathic because it has one end that is hydrophobic and the other end is hydrophilic. Therefore, with the right temperature, Pph, and precursor molecules, it is possible for phospholipid molecules to form membrane-like structures.
Learn more phospholipid at:
https://brainly.com/question/20561742?referrer=searchResults
#SPJ4
Why isn't it possible for adenine to pair with cytosine
or guanine?
Answers
Both bases need to twist hard to facilitate the hydrogen bond which is energetically expensive event; thus hydrogen bonds forming functional groups are not complementary in adenine and cytosine
Helpppppppppp meeeeeee
Answers
Explanation:
\(here \: is \: your \: \: answer \: \\ \\ C.) B \: cells , T \: cells \: ✓✓ \\ \\ hope \: it \: helps \: you\)
The graph shows how much a plant grew over a five week time period. According to the graph how many centimeters did the plant grow between week 1 and week 5
Answers
Answer:
I can't answer the question where is the graph
Answer:
I think it might be 6-30 inches.
Explanation:
If im wrong i cant do anything there is not graph no offence.