Two parents, both with brown eyes, have four children. One child has brown eyes, like his parents, but the other three all have blue eyes. One of the children has been learning about genetics in science class and knows that brown eyes are dominant to blue eyes in humans. The student developed the following model of a Punnett square to predict the genotypes of his parents and his siblings.

Based on his model, the student claims that only one of the four children should have blue eyes. Which of the following explanations best describes why the Punnett square does not model the traits in the student’s family? (DOK 3)

Two Parents, Both With Brown Eyes, Have Four Children. One Child Has Brown Eyes, Like His Parents, But

Answers

Answer 1

Answer:

Punnett squares are not exact answers, they are only used to predict traits.

Answer 2

A.

The student is forgetting that a Punnett square is used to predict the outcomes of a genetic cross. The actual results do not always match up to the predicted outcomes.


Related Questions

A species of eels that lives in the ocean can move up rivers to spawn. A freshwater pike is unable to move into the ocean from a river. Based on your knowledge of cellular membranes, explain why eels can move back and forth into the ocean, whereas pike cannot.

Answers

Answer:

Eels are a long, thin slimy fish that have a fin that runs the entire lengths of the backs of their bodies, extends around the tail and run for a distance on the underside of the fish. They have a wide and strong mouth. The pike has a long, slender body that is olive green in color and fades to yellowish-white on its belly. The reason for this is because they have diffrent bodies and a eel is small while pikes are big and have more weight.

Explanation:

Hope this helps. Mark me brainlist plzzzzz

How many membranes are does the nucleus have?

Answers

Explanation:

The nucleus contains all of the genetic material for a eukaryotic cell, but this genetic material needs to be protected. And it's protected by the nuclear membrane, which is a double membrane that encloses all the nuclear genetic material and all the other components of the nucleus

Answer:

it has 2

Explanation:

1) What are estuaries? 2) How/why do shallow estuary waters create unique habitats for organisms living here? 3) How does the salinity in water change as you move from inland areas out towards the ocean? Be sure to include the phrase "brackish waters" in your response . 4) List 4 ways estuaries provide protection for inland areas. 5) How does dredging impact fish living in an estuary? 6) How could too many nutrients impact the natural balance in an estuary? 7) List and describe 3 ways the land terrain change as we move from Charlotte, NC to the coastal plains of North Carolina ) List 4 ways estuaries provide protection for inland areas. 9) List 5 factors that can change the flow of water through an ecosystem 10)List and describe 4 reasons estuaries are important for both wildlife and human activity

Answers

Answer:

Estuaries is a water body where freshwater from rivers and streams combines with salt water that is coming from the ocean.

Explanation:

Estuaries is a type of water body that is partially enclosed present at the coastal side where freshwater from rivers and streams combines with salt water that is coming from the ocean. Shallow estuary waters create unique habitats for organisms living there because the presence of brackish water refers to the mixture of fresh water draining from the land and salty seawater. The salinity in water change as you move from inland areas out towards the ocean because the water of inland has less salt in it while water of ocean has huge amount of salt present in it so when we move from inland to the ocean salt concentration increases in it. estuaries provide protection for inland areas by filtering pollutants, prevent shoreline erosion, flooding and storm.

Do turkeys get sleepy from that thing in turkey that makes you sleepy?

Answers

Answer:

Turkey allegedly causes drowsiness because it is packed with a nutrient called tryptophan. Tryptophan is one of 20 naturally occurring amino acids—the building blocks of proteins. Because the body is unable to manufacture tryptophan on its own, it must be obtained from food protein.

Eating anything healthy and filling will get you sleepy

What are the functions of proteins?

Answers

Answer:

the function  for proteins:

Repair and Maintenance.

Energy.

Hormones.

Enzymes.

Explanation:

Explanation:

Proteins are a class of macromolecules that perform a diverse range of functions for the cell. They help in metabolism by providing structural support and by acting as enzymes, carriers, or hormones. The building blocks of proteins (monomers) are amino acids.

what is a definition and example of Elevation

Answers

How high somthing is
To step up, how high something is. You can use the example as stairs or a y’all building.

what is chromosomes​

Answers

Answer:

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.

Put the following steps in order:
1. Calcium binds to troponin
3. Myosin head is release from actin
5. Electrical impulse (action potential) is
send to sarcoplasmic reticulum
7. Myosin heads are bound to actin
9. ATP binds to myosin head
2.Sarcoplasmic reticulum releases calcium
4. Motor neuron action potential is signaled
6. Tropomyosin moves exposing the active
binding site
8. Acetylcholine is release
10. power stroke/contraction

Answers

Answer:

the answer is free points

Explanation:

An eagle is a predator for squirrels. A new law stops humans from hunting
eagles, and the eagle population increases. What will happen to the squirrel
population?
A. The carrying capacity of the ecosystem will increase.
B. The squirrel population will increase.
C. The ecosystem will reach Hardy-Weinberg equilibrium.
D. The squirrel birthrate will decrease.

Answers

Answer:

Imma say D

Explanation:

As eagle feeds on squirrels, an increase in the number of eagles, will obviously lead to a decrease in the number of squirrels.

An eagle is a predator for squirrels, a new law stops humans from hunting eagles, and the eagle population increases, so the most likely outcome is that the squirrel population will decrease due to an increase in eagle predation, which is option D.

What is a predator-prey relationship?

Eagles are predators of squirrels, and an increase in the eagle population will likely lead to an increase in predation on squirrels. This could result in a decrease in the squirrel population. However, it's worth noting that the relationship between predator and prey populations is complex, and the effect of an increase in the predator population on the prey population will depend on a variety of factors. While an increase in the eagle population due to new laws that prohibit hunting them may have positive implications for their conservation, it could potentially have negative consequences for the squirrel population.

Hence, the most likely outcome is that the squirrel population will decrease due to an increase in eagle predation, which is option D.

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If one species of an organism in an ecosystem suddenly disappeared, which would be the most likely result?
A
The ecosystem would be destroyed immediately.
B
The ecosystem would not be changed at all.
с
Only one part of the ecosystem would be affected.
D
Many parts of the ecosystem would be affected.

Answers

Answer:

D Many parts of the ecosystem would be affected.

Explanation:

brainest plz

Answer:

D

Explanation:

One animal has many different parts in an ecosystem and if it were to be removed it would affect many parts of the ecosystem

PLEASE HELP I WILL GIVE LOTS OF POINTS !
A student illustrated a model of particles being transported out of the cell. ( image above) what best describes the transport process occurring in the model?
a. energy is used to move sodium ions from low concentration to high concentration
b. sodium ions are moving from low to high concentration without using energy
c. sodium ions are moving from high to low concentration without using energy
d energy is used to move sodium ions from high to low concentration​

Answers

Answer:

C.

mark me the brainliest if this helps

Explanation:

Simple diffusion is pretty much exactly what it sounds like – molecules move down their gradients through the membrane. Molecules that practice simple diffusion must be small and nonpolar*, in order to pass through the membrane. Simple diffusion can be disrupted if the diffusion distance is increased. If the alveoli in our lungs fill with fluid (pulmonary edema), the distance the gases must travel increases, and their transport decreases. Facilitated diffusion is diffusion that is helped along (facilitated by) a membrane transport channel. These channels are glycoproteins (proteins with carbohydrates attached) that allow molecules to pass through the membrane. These channels are almost always specific for either a certain molecule or a certain type of molecule (i.e. an ion channel), and so they are tightly linked to certain physiologic functions. For example, one such transporter channel, GLUT4, is incredibly important in diabetes. GLUT4 is a glucose transporter found in fat and skeletal muscle. Insulin triggers GLUT4 to insert into the membranes of these cells so that glucose can be taken in from the blood. Since this is a passive mechanism, the amount of sugar entering our cells is proportional to how much sugar we consume, up to the point that all our channels are being used (saturation). In type II diabetes mellitus, cells do not respond as well to the presence of insulin, and so do not insert GLUT4 into their membranes. This can lead to soaring blood glucose levels which can cause heart disease, stroke, and kidney

10 points
If the pH is adjusted to around neutral, most of the essential nutrients
(elements) will become available for uptake by the plant.
True
False

Answers

Soil pH affects nutrients available for plant growth. In highly acidic soil, aluminum and manganese can become more available and more toxic to plant while calcium, phosphorus, and magnesium are less available to the plant. In highly alkaline soil, phosphorus and most micronutrients become less available.
The answer your looking for is true I believe

endosymbiosis theory

Answers

Answer:

The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes.

What are sedimentary rocks? What are two examples of sedimentary rocks

Answers

Answer:

Sedimentary rocks are types of rock that are formed by the accumlation ordeposition of mineral or organicparticles at the Earths surface, followed by cementation. Sedimentary is the collective name of processes that cause these particles to settle in place.  

Explanation:

Some explains of Sedimentary rocks are Siltsone, Shale, Limestone, and Breccia.

When there is a relationship between
two factors it is called a–
a. correlational effect.
b. positive feedback.
c. negative feedback.
d. causal effect.

Answers

C.just leave the relationship alone

which is a cause of desertification?
A. farming
b. creating reservoirs
c. overgrazing
d. driving motor vehicles?

Answers

overgrazing is a cause of desertification, so c.

Answer:

c. overgrazing

Explanation:

your welcome

A gross anatomy professor requests that the students cut a transverse section from a specimen and place it on a slide, producing a superior view of the section. In which direction would the students cut the specimen, and how would they position the cut section on the slide? (2 points)

Inferior to superior, and place the section left side down on the slide
Inferior to superior, and place the section right side down on the slide
Right to left, and place the section superior side down on the slide
Right to left, and place the section inferior side down on the slide

Answers

Answer: D

Explanation:

i just took the test

Answer: it is D

Explanation:

How is the life cycle of Ascomycetes different from that of humans?

A.
Haploid cells undergo meiosis.

B.
Haploid cells undergo mitosis.

C.
Diploid cells undergo meiosis.

D.
Diploid cells undergo mitosis.

Answers

Ascomycetes have a different life cycle from humans in that they go through mitosis in haploid cells.

How do haploid cells work?

A cell with a single collection of chromosomes is called haploid. The complement of chromosomes found in sperm or egg cells, often known as gametes, is also referred to as haploid. In humans, sperm and eggs are haploid cells with 23 chromosomes—one of each chromosomal pair found in diplod cells—and are hence haploid.

What are the benefits of haploid cells?

Haploid cells are ideal for studying gene function because they only have one copy of something like the genome, making it impossible for changes to be hidden from view. Humans make haploid cells during meiosis.

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ATP is to your cells as ______ is to a car

Answers

Answer:

Gas to a car

Explanation:

The ATP function in the cell is equal to the gas or fuel function in the car, as the ATP gives energy to the cell for different functions like the fuel gives energy to the car to move from one place to another.

 

What is the function of the ATP?

ATP is produced in the cell from the food that living organisms, such as animals and plants, consume and use to produce ATP. There are different reactions that together make ATP, such as glycolysis, the Krebs cycle, and the electron transport chain, and with the help of ATP synthase, ATP is made. It performs a variety of cellular functions, including protein synthesis, food digestion, message transmission from one cell to another, and so on.

Hence, the ATP function in the cell is equal to the gas or fuel function in the car, as the ATP gives energy to the cell for different functions.

Learn more about the ATP here.

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Some species of sea turtles can live for hundreds of years. Which prediction regarding these species is MOST likely true?

A.
Telomerase is not expressed in their cells.

B.
Chromosomes do not replicate as they grow.

C.
Telomere length does not shorten as they age.

D.
Genes are not located near the ends of their chromosomes.

Answers

D.

Genes are not located near the ends of their chromosomes.

After the telomeres disapear the important genetic material won't be affected.

Answer:

C. Telomere length does not shorten as they age.

Explanation:

A is wrong because Telomerase is expressed in their cells.

B is wrong because chromosomes do replicate as they grow.

D is wrong because the genes are located near the ends of the chromosomes.

I took the test.

If i were to jump off a cliff without bending my knees, would i break my legs and/or my spine??

Answers

I feel like you would break your legs because of the impact and maybe ankels

Answer:

If you were to jump off a cliff, you would break both your legs and your spine.

Explanation:

Since you would be landing on your feet when crashing onto the ground/rocks/etc., you would potentially (actually, 99.99% chance) become paralyzed and not be able to move your legs and spine. The five sciatic nerves join at the base of the spine and extend down the back of each leg to the toes. The sciatic nerves connect the spinal cord to many of the leg and foot muscles.

Therefore, since you would be landing on your feet, you damage not only the feet and legs, but also your entire spine, which is also connected to your brain (the spinal nerves that is).

#teamtrees #WAP (Water And Plant)

A limiting factor is an environmental factor that increases the growth of population? True or False

Answers

Answer:

False

Explanation:

A limiting factor is the environmental factor that is of predominant importance in restricting the size of a population.

A limiting factor is an environmental factor that increases the growth of population-This statement is false.

Limiting factor:

In biology, the term restricting component is characterized as a natural element or variable that has the ability to limit the development, overflow, or appropriation of a populace in an environment. These elements are available in restricted supply. Subsequently, creatures will generally vie for their restricted accessibility in the environment.

Thus, Limiting factor does not increase the growth of the population.

Find more information about Environment here:

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From which countries have pandemic flu outbreaks originated? Check all that apply.
Russia
Mexico
USA
Canada​

Answers

Answer: USA, And Russia

Explanation:

It is USA ahahahahahahah

in your mouth, teeth grind food

a. mechanical
b.chemical

Answers

this is an example of mechanical digestion

Answer:

A. mechanical

Explanation:

the food isn't being chemical grinded

This neurotransmitter is an antagonist.
acetylcholine
both
GABA
neither
which one?

Answers

Answer:

acetylcholine

Explanation:

Acetylcholine is an organic chemical that functions in the brain and body of many types of animals as a neurotransmitter—a chemical message released by nerve cells to send signals to other cells, such as neurons, muscle cells and gland cells

Mark me as brainliest

are all qnswer right​

Answers

Answer:

yes good job!

Explanation:

Answer:

Explanation:

Yes great job

Pseudoscience is more likely to be driven by ALL of the following factors EXCEPT?

A. commercial interests
B. evidence
C. culture
D. ideology

Answers

Explanation:

A because you need reservation question hypothesis experiment analyze and a conclusion

If you were to find a clean well-sorted sandstone what geologic events may have caused this? How are these events different from those that form an arkose?

Answers

Answer: Arenite

Explanation:

Arenite can be defined as the sedimentary clastic rock.

It is of the sand grain size.

It also comprises of matrix.

It is a metamorphosed sediment.

Arenite is formed by the erosion of the turbiditic re-deposition of the sands. It belongs to silicatic limestones.

PLSSSS HELPPPP ASAPPP

Answers

Answer:

the green 1

Explanation:

Theoretically, how might researchers disrupt signal transduction pathways as possible treatments for cancer?
a. stimulate production of cAMP in cancer cells.
b. inactivate epinephrine receptors on cancer cells.
c. alter G protein-coupled receptors involved in cell cycle regulation to be active in the absence of their normal signaling molecules.
d. disrupt the function of protein kinases involved in cell cycle regulation.

Answers

Answer:

d. disrupt the function of protein kinases involved in cell cycle regulation.

Explanation:

Protein kinases which are useful in cell cycles have major roles in the formation of tumors. So many of these protein kinases go through mutations. Cell cycles would be unable to be stoped and tumor would keep increasing.

A lot of receptors are G protein coupled. So it is going to be really helpful to alter and make G protein receptors to be inactive. Most if these kinases go through means of phosphorylation and dephosphorylation. Targeting these would cause disruption in signal transduction in cells with cancer

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