BIOLOGY MIDDLE SCHOOL

Which is the best evidence to prove that irene was heterozygous for hemophilia

Answers

Answer 1
Answer:

A. Alice carried the recessive allele


Answer 2
Answer:

Answer:

A, Alice carried the recessive allele.

Explanation:

got it right edg 2021


Related Questions

HIGH SCHOOL

Why would competition be considered a limiting factor within an ecosystem?

Answers

It is a limiting factor as other species can die from no food so nit limits species
HIGH SCHOOL

Which of these germinal layers give rise to the digestive system, the circulatory system, and the nervous system?. . . . Endoderm, mesoderm, and ectoderm, respectively . . . . Mesoderm, ectoderm, and endoderm, respectively . . . . Ectoderm, endoderm, and mesoderm, respectively .

Answers

The germinal layers that give rise to the digestive system is Ectoderm, Endoderm, Mesoderm, Respectively. And the best answer among your choices is the last option which is C. I hope you are satisfied with my answer and feel free to ask for more 

Answer:

The correct answer is endoderm, mesoderm, and ectoderm respectively.

Explanation:

During gastrulation stage three-layered germinal layers forms in triploblastic animals. The three layers are known as - outer layer ectoderm, middle layer mesoderm, and the inner layer endoderm.

Later on, the digestive system rises from the endoderm, mesoderm rises to the circulatory system, and ectoderm differentiates to form the nervous system.

Thus the correct answer is Endoderm, mesoderm, and ectoderm respectively.

HIGH SCHOOL

Why does the inside of the thylakoid membrane become positively charged during the light-dependent reactions?

Answers

The thylakoid membrane is positively charged by protons released by dissociation of water during the light-dependent reactions and positive charges translocated from outside through the membrane during electron transport.

  • Light is absorbed by chlorophyll a molecules bound to proteins from the reaction center in the thylakoid membrane.

  • The dissociation of water molecules occurs due to the effect of light, and is defined as the interaction of one or more photons with a target molecule.

  • As the electrons pass through the acceptor chain, the protons are pumped into the thylakoid where they accumulate.

  • Protons are equivalent to H + ions, therefore the interior pH of the thylakoid drops, thereby establishing a pH difference across the membrane.

  • The electrons are transferred through the chain of electron transporting molecules that releases energy, this energy contributes to the pumping of hydrogen ions, from the stroma to the thylakoid and generating a proton gradient.

Therefore, we can conclude that the thylakoid membrane is positively charged since the transport of electrons is coupled to the movement of protons through the membrane, from the stroma towards the lumen of the thylakoid.

Learn more about thylakoid membrane here: brainly.com/question/477158

Why does the inside of the thylakoid membrane become positively charged during the light-dependent reactions?

a. H+  ions are released as water splits.

b. ATP synthase allows H+  ions to pass through the membrane.

c. ATP synthase produces ATP from ADP.

d. Carbon dioxide builds up in the stroma.

Answer:

a. H+  ions are released as water splits.

Explanation:

The water-splitting complex is associated with the lumen side of the PSII. Splitting of water during the light-dependent reactions of photosynthesis releases protons, electrons, and oxygen. For two molecules of water split, four protons and one molecule of molecular oxygen are released in the lumen of the thylakoid. These released protons make the inside of the lumen more positive during the light-dependent phase of photosynthesis.

MIDDLE SCHOOL

How do greenhouse gases such as CO2 and N2O contribute to an increase in Earth’s atmospheric temperature?

Answers

Answer:

Greenhouse gases interact with infrared photons and reflect them back to earths surfaces

Explanation:

This is the correct answer

These greenhouse gases are trapping the heat inside the atmosphere. When more of these gases are released, it contributes to global warming and the melting of many polar areas that could potentially cause a natural disaster in the future.

HIGH SCHOOL

Which three symptoms would earn a diagnosis of metabolic syndrome ? a. obesity around the waist, low hdl levels, and high levels of triglycerides.
b. obesity around the waist, low ldl levels, and high levels of triglycerides.
c. obesity in the hips, low ldl levels, and high levels of triglycerides.
d. obesity in the hips and legs, low hdl levels, and high levels of triglycerides?

Answers

Which three symptoms would earn a diagnosis of metabolic syndrome?

Answer:

a. obesity around the waist, low hdl levels, and high levels of triglycerides.

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HIGH SCHOOL

The organic chemicals that help cell membranes to conserve internal fluids are____. Hormones
Phospholipids
Amino acids
Proteins

Answers

The cell membrane is mainly composed of phospholipids. These phospholipids provide the property of semi-fluidic nature to the cell membrane which helps the cell membrane to conserve the internal fluids. Hence the correct answer is phospholipids.
COLLEGE

Which of the following is a true statement about cellular respiration? Cellular respiration occurs only in plant cells.
Cellular respiration occurs only in animal cells.
Cellular respiration occurs in both plant and animal cells.
Cellular respiration occurs in some plant cells and some animal cells.

Answers

Cellular respiration occurs in both plant and animal cells

Answer: Your best answer is: C or #3

Explanation: I took the test and I chose #3 or c and I got it right. 100% sure its right!

HIGH SCHOOL

Muddy water contains microorganisms, clay, and silt. Which of the following statements suggests that muddy water is a suspension? A.It is a heterogenous mixture and particles settle down if left undisturbed. B.It is a heterogenous mixture and particles do not settle down. C.It is a homogenous mixture and particles settle down if left undisturbed.

Answers

I got C. it is a homogenous mixture and particles settle down if left undisturbed.
COLLEGE

Malocclusion refers to misalignment of the teeth or a mismatch between teeth of the upper and lower jaw. analyses of skeletons during historical times and of fossils from prehistoric times indicate that malocclusion was rare over much of human existence. we, like others mammalian species, evolved to have good physical alignment between teeth in the upper and lower jaws. in the last few hundred years, however, the incidence of malocclusion has increased dramatically in most parts of the world. this increased susceptibility to malocclusion is most likely due to

Answers

Changes in food sources, such as mass production and refinement, which have eliminated coarse materials that contributed to effective bite structure. Rabbits, for instance, often suffer malocclusion, but hay, twigs, and other items can help to prevent the occurrence of malocclusion and other related dental issues.
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