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Effectus [21]
3 years ago
14

A medical researcher hypothesizes that a new drug can reduce cholesterol. which of these would most likely be the dependent vari

able in the study involving this medication?
A) the number of participants in the study
B) the ages of the people treated for cholesterol with other medications.
C) the cholesterol level of the participants in the study
D) the number of people treated for high cholesterol with other medications
Biology
1 answer:
Tems11 [23]3 years ago
7 0
<span>C. The cholesterol level of the participants in the study.</span>
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Answer:

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Each transfer RNA requires at least four specific recognition sites that must be inherent in its tertiary structure in order for
Jet001 [13]

Answer: The options are not included.

But the sites are;

Interaction with ribosomes.

Interaction with aminoacyl tRNA

synthase.

Attachment of the specific Amino acid.

Interaction with codon.

Explanation:

Transfer RNA is a type of RNA that help to translate messenger RNA sequence into protein. Each tRNA have two major areas; the anticodon and region for attaching specific Amino acids.

tRNAs function at specific sites in the ribosomes during mRNA deciding.

The four specific recognition sites of trna that must be inherent in it's tertiary structures in order for it to carry out it's role are;.

Interaction with ribosomes.

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3 years ago
Please explain the difference between a frameshift mutation and a base substitution mutation.
harina [27]

Answer:

A frameshift changes every codon past it. A base substitution only changes one codon.

Explanation:

DNA is comprised of nucleotides (A, C, T, G) that make up amino acids. Every three bases is called a codon and represents an amino acid.

In a frameshift mutation, a nucleotide is either added or deleted from the sequence. This offsets the entire sequence after it because the reading frame shifts. Here's an example:

ACTGCTATCGTCATC

If another T is added in between the first and second codons, then every codon after will be changed.

ACT>T<GCTATCGTCATC

A substitution mutation is usually less severe, as it only alters one codon in the sequence. These occur when one nucleotide is replaced by another one. Here's an example:

ACTGCTATCGTCATC

Let's say the first G is replaced by a T.

ACT>T<CTATCGTCATC

As you can see, none of the other codons changed.

Typically, a frameshift mutation is considered worse than a substitution mutation.

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Answer:

<h2><u>A. Having a nucleus</u></h2>

Explanation:

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