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2 years ago

The most commonly occurring mutation in people with cystic fibrosis is a deletion of a single codon. This results in:__________

Biology

1 answer:

ad-work [718]2 years ago

4 0

Answer:

d) a polypeptide missing an amino acid.

Explanation:

Deletion is a type of mutation when one or more codons from the reading frame are removed. This results in the production of a relatively shorter mRNA that lacks one or more codons otherwise present in the non-mutated mRNA. When there is a deletion of a single codon in the gene for cystic fibrosis, the resultant shorter mRNA codes for a polypeptide chain that does not carry one amino acid. For example, deletion of one codon results in deletion of a Phe residue present at position 508 in CFTR. The mutated transmembrane protein CFTR folds in an improper way.

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How new species may have formed in three land masses from the ancestral Adansonia species

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Depression that repeatedly occurs with onset of autumn and winter is to _____ as chronic, low-grade depression is to _____. seas

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3 years ago

Polymers are made of individual subunit called

AfilCa [17]

Polymers are made of individual subunit called monomer.

Explanation:

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3 years ago

Read 2 more answers

The trait of medium-sized leaves in iris is determined by the genetic condition PP′. Plants with large leaves are PP, whereas pl

dsp73

Answer:

20 large size leaves plants

40 medium sized leaves plants

20 small sized leaves.

Explanation:

PP = large leaves

P'P' = small leaves

PP' = medium leaves

PP' was crossed with another PP' plant:

PP' x PP'

progeny = PP, 2PP', and P'P'

PP = 1/4 x 80 = 20 large size leaves plants

PP' = 1/2 x 80 = 40 medium sized leaves plants

P'P' = 1/4 x 80 = 20 small sized leaves.

Hence the phenotypes would be:

20 large size leaves plants

40 medium sized leaves plants

20 small sized leaves.

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2 years ago

The Earth's core is

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The earths core is D.hotter than both the crust and mantle

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3 years ago