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olga2289 [7]
3 years ago
5

After using a chemical mutagen to generate mutations in a dna sequence, scientists noted a mutation from c to t at the 10th posi

tion within the coding region of a gene. this mutation led to a change of proline into serine at the fourth position in the resulting peptide. using this information and the sequences listed below, select all the types of mutations that occurred.
Biology
1 answer:
Luda [366]3 years ago
3 0

Answer:

substitution, missense mutation, and transition

Explanation:

A mutation is any change in the genetic information of an organism. A substitution is a point mutation by which a single nucleotide base pair is replaced by a different nucleotide. Moreover, a missense mutation is a point mutation that results in the incorporation of a different amino acid in the polypeptide chain since this mutation generates a new codon which codes for a different amino acid. Finally, a transition is a point mutation where a purine (either Adenine or Guanine) is changed to another purine, or a pyrimidine (either Thymine or Cytosine) is changed to another pyrimidine (in this case, Cytosine is changed to Thymine).

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BRAINLIESTTTT ASAP!!
cestrela7 [59]

I am not sure about the second one, but I know the first one.

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3 years ago
what are the scientist doing incorrectly? what could they do to make their work in the lab safer? why is it important to follow
ss7ja [257]

Answer:

What the scientist is doing incorrectly is hitting a rock with a hammer without protective equipment and on the same table where containers with chemical or biological substances are found.

Explanation:

Biosafety is an important aspect of laboratory work. Conducting studies in rocks, trying to fracture them with the use of a hammer is an incorrect practice carried out by a scientist when he does not use protective equipment and has containers with substances on the same work table.

<h3>what could he do to make their work in the lab safer?</h3>
  1. <em>Wear gloves, protective apron and protective eyewear.</em>
  2. <em>Break the rock on a work table where there are no containers that could break by accident, spilling their contents.</em>
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It is important to follow these procedures because injuries to hands, body or eyes can be avoided by fracturing the rock. In addition, it prevents the breakage of containers with chemical or biological products, which could contaminate the work area or cause damage to the scientist.

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