You have isolated a fragment of DNA that totally encodes at least two proteins, 120

and 80 amino acids long. The DNA fragment is 400 base pairs long. (A) Why might

you consider this unusual? (B) You sequence th two proteins and find no homology.

Propose a model to account for these findings

Question

Pinata

Biology

30 May, 16:01

You have isolated a fragment of DNA that totally encodes at least two proteins, 120

and 80 amino acids long. The DNA fragment is 400 base pairs long. (A) Why might

you consider this unusual? (B) You sequence th two proteins and find no homology.

Propose a model to account for these findings

+5

Answers (1)

Know the Answer?

Lexus · Answer 1

The two proteins of 120 and 80 amino acids long, need at least 600 base pairs in order to encode the proteins, therefore encoding on a 400 base pair strand is unusual.

Explanation:

It is possible that there has been a frameshift, therefore the interpretation of two separate reading frames has resulted in two different proteins.

You have isolated a fragment of DNA that totally encodes at least two proteins, 120and 80 amino acids long. The DNA fragment is 400 base pairs long. (A) Why mightyou consider this unusual? (B) You sequence th two proteins and find no homology.Propose a model to account for these findings

You have isolated a fragment of DNA that totally encodes at least two proteins, 120

and 80 amino acids long. The DNA fragment is 400 base pairs long. (A) Why might

you consider this unusual? (B) You sequence th two proteins and find no homology.

Propose a model to account for these findings