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Masja [62]
3 years ago
11

Why do children with junctional epidermolysis bullosa have fragile skin

Biology
1 answer:
Kazeer [188]3 years ago
4 0
Because of a mutation in the COL7A1 gene which is the gene that provides the body with instructions for making the protein that form the pieces of a larger protein that makes collagen
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(a) What cell structures best reveal evolutionary unity?
xeze [42]

Answer:

The correct answer will be-

1. Evolutionary unity-  DNA

2. specialized cellular modifications- plant cells have chloroplasts and large central vacuole.

Explanation:

<u>Case I </u>

Evolutionary unity is a concept which explains that all the organisms possess some common structure or universal structure or molecules.

The best characterized evolutionary molecule is DNA molecule which took the role of genetic material in past and is passed on to the daughter cells and still is made up of the same components which are a five-carbon sugar, four types of nitrogenous bases and a phosphate group. This DNA molecule is present in almost every organism except for a few viruses.

<u>Case II </u>

The specialization of the cellular components depends on the function a cell has to perform which became established in the population. The plant cells depended on the sunlight to prepare food for themselves which was done by the chloroplast organelle which is absent in the animal kingdom.

7 0
3 years ago
In which abdominal quadrant is the duodenum located? right upper right lower left upper left lower?
Dmitriy789 [7]
Right upper is the location for the duodenum
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3 years ago
Is water or carbon the most important molecule to life? <br><br> evidence 1:<br><br> evidence 2:
sp2606 [1]

the four molecules of life are proteins, carbohydrates, lipids and nucleic acids. Each of the four groups is vital for every single organism on Earth. Without any of these four molecules, a cell and organism would not be able to live. All of the four molecules of life are important either structurally or functionally for cells and, in most cases, they are important in both ways.

this is what i have about this


7 0
3 years ago
Photosynthesis is an example of metabolism <br><br> True or false
kirza4 [7]
Hi there!

The answer should be True.

Hope this helps!

-Payshence xoxo
4 0
3 years ago
Read 2 more answers
The Differences Between Monosaccharides &amp;<br> Polysaccharides
saveliy_v [14]

Answer:

simple. the root word mono means one

the root word poly means many.

4 0
3 years ago
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