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lozanna [386]
2 years ago
7

Absorption of ultraviolet light by organic molecules always results in what process?

Biology
1 answer:
Amiraneli [1.4K]2 years ago
6 0

Answer:

electronic excitation

Explanation:

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A man with normal vision marries a color-blind woman. Red-green color blindness is an X- linked recessive disorder. They have a
jeyben [28]

Answer: The probability is 100%.

Explanation: The chromosome X is related to gender. A man carries two different chromosomes (XY) and a woman carries two similar chromosomes (XX). The offspring of a couple will inherited:

  • If it is a boy, he inherites the chromosome Y from his father and X from his mother;
  • If it a girl, she inherites X from her father and X from her mother;

In the question, the woman is color-blind, which means she carries the recessive alleles: X^{d}X^{d}

The man, on the other hand, is normal, so his X-linked genotype will be: X^{D}Y.

Now, since they have a daughter, she inherited her double X from each of her parents, which means she inherited one X^{d} from her mother and one X^{D} from her father.

So, the daughter's genotype can only be heterozygotic  X^{D}X^{d} in other words, the probability is 100%.

5 0
4 years ago
Why does darkness affect the light-independent reactions of photosynthesis
iren2701 [21]

Answer:

Explanation:

Why does darkness affect the light-independent reactions of photosynthesis? Plants stop their daytime activities and rest during the night much like animals do. ... Light independent reactions require the energy gathered in the thylakoids. Mitochondria produce sugars more effectively in the darkness than chloroplasts do

3 0
3 years ago
Explain the relationship between enzymes and activation energy
julia-pushkina [17]
The activation energy<span> is the </span>energy<span> required to start a reaction. </span>Enzymes<span> are proteins that bind to a molecule, or substrate, to modify it and lower the </span>energy<span> required to make it react.</span>
5 0
3 years ago
A primary function of polysaccharides attached to glycoproteins and glycolipids of animal cell membranes is to: a)facilitate dif
dolphi86 [110]

Answer:

The correct answer is b) mediate cell-to-cell recognition

Explanation:

Cell to cell recognition is necessary for a cell to know and distinguish its neighbor cells. Cell adhesion is one of the examples cell to cell communication when a cells comes in contact with other cells by interaction with their specialized protein complex.

This contact between cells is accomplished by plasma membrane components like carbohydrates that are attached to proteins and lipids which makes glycoproteins, glycolipids, and glycolipoproteins.

This cell to cell communication is important for cell to proliferate and function together in organs like in liver, liver cell only works when they are surrounded by more liver cells.

So the right answer is b) mediate cell-to-cell recognition.

4 0
4 years ago
In 3-5 sentences, describe the human respiratory system and its functions.(4 points)
klemol [59]

Answer:

the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.

Explanation:

4 0
3 years ago
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