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horrorfan [7]
3 years ago
6

The fibrous protein responsible for the structure of hair and wool is

Biology
1 answer:
Ann [662]3 years ago
6 0
Keratin 

Hope this helps
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cysteine

Explanation:

The anticodon for ACA is UGU

in the left column find the U. From the top column find the G. From the right column find the last U. The amino acid at that location is cysteine

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Once stimulated, a network of neurons will stay in a state of readiness for hours or even days.
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The brain will respond to the <span>thousands of stimuli we experience each day and these network of neurons has the tendency to stay in a state of readiness for hours or even days after one of the firing events happen and if these patterns are stimulated again, </span>the <span>network of connections becomes more permanent. </span></span>
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Why are lichens a good pioneer species after a volcanic eruption?
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3 years ago
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Which of the following is correctly matched with its description? a) Nonrepetitive DNA is composed of thousands of copies of man
forsale [732]

Answer:

c) Moderately repetitive DNA contains retro elements, such as the Alu sequence.

Explanation:

The genetic material (DNA) has been proven to contain segments or sequences that are non-coding regions i.e. do not encode proteins. These non-coding sequences can either be repeated in the genome (repetitive) or not (non-repititive). The repetitive DNA sequences can consist of short sequences that repeat themselves enormous amount of times in the genome. This repetitive DNA sequence is said to be HIGHLY repetitive.

Another one can contain long nucleotide sequences scattered in the genome. They do not repeat as often as the highly repetitive sequences. They contain retro elements like Alu sequences and transposons. These sequence is said to be MODERATELY repetitive.

The non-repititive sequences are the part of the DNA that encodes a protein. They are called unique sequences because they occur in only one or few copies in the genome.

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