A mutation within a gene that will insert a premature stop codon in mrna would ________. result in a longer polypeptide chain result in a shortened polypeptide chain change the location at which transcription of the next gene begins have the same effect as deleting a single nucleotide in the gene

Question

28-02-2018
Biology

contestada

A mutation within a gene that will insert a premature stop codon in mrna would ________. result in a longer polypeptide chain result in a shortened polypeptide chain change the location at which transcription of the next gene begins have the same effect as deleting a single nucleotide in the gene

Respuesta :

Otras preguntas

13. Because information listed on a website can change from day to day, _______ must be included in the end citation on the Works Cited page. A. the URL B. the

_____ is a level in the hierarchical classification scheme between kingdom and class that applies to the group of plants or fungi

what was one cause of the spanish civil war

A scientist has inserted a gene into a plasmid. Which enzyme should she use to join the sticky ends of the gene and the plasmid?

emplee razonamientos para definir con sus propias palabras lo que es el ambiente

What is the vertex of the graph of f(x) = |x + 5| – 6? (–6, –5) (–6, 5) (–5, –6) (5, –6)

For which values of x is the function y = 5 / (x-4)(x+5) not defined? Select all that apply. A) -5 B) -4 C) 4 D) 5

while making oatmeal cookies, angela needs to add 1/2 cup of milk to her dough. however, she has only a 1/4 cup measuring cup. how many times does she need to f

Over time, pollution generally leads to which of the following? a.healthier plants b.healthier animals c.a decrease in population of some plants and animals d.a

A shelf in the Metro Department Store contains 85 colored ink cartridges for a popular ink-jet printer. Six of the cartridges are defective. (a) If a customer s

danilosanmartin danilosanmartin · Answer 1 · 2018-03-10T06:15:23+01:00

The correct answer is "result in a shortened polypeptide chain".

This is a defect in the genetic code wherein the mRNA transcribed from the DNA has a premature stop codon. A stop codon is a codon (three nucleotides) which will signal the translation process to stop by a release factor. The stop codons for humans are UAA, UAG, and UGA. In the event where there is a mutation involving a premature stop codon in the mRNA, then the translation process will end prematurely making the elongating polypeptide chain to also release prematurely. This polypeptide chain is shortened as the elongation process is interrupted.

Arclight Arclight · Answer 2 · 2020-01-02T06:59:12+01:00

Answer:

Option B, result in a shortened polypeptide chain

Explanation:

Premature stop codon causes mutation which is called as non-sense mutation. In a non-sense mutation, the nonsense codon do not code for any amino acid instead they stop the coding and causes end of protein synthesis. Due to this, proteins are not synthesized to their full length and are also incomplete. These proteins are mostly nonfunctional, inactive and mutated.

Hence, option B is correct