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ryzh [129]
3 years ago
8

What is the difference between a control and a variable?

Biology
1 answer:
Alla [95]3 years ago
3 0
N an experiment the "control" is the group of people or object this is used to measure the effect of the variable. The "control" is the thing that does not change and is not the thing in question.

In an experiment the "variable" is the thing which is changed and manipulated by the experimenter. It is the effect of something,

Example: You want to test a drug. you get a group of 40 people. 20 people are given the pill, 20 people are not given the pill but a sugar pill. the people who have the pill is the "variable" and the people who dont have the pill is the "control".
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If a tRNA molecule has an anticodon which reads AUG, what was the codon of the mRNA molecule?
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Answer: UAC

Explanation: transfer RNA(tRNA) is the type of RNA that interprets the messenger RNA(mRNA) code during translation. The job of tRNA is to match up the amino acids with the correct codons in the mRNA strand. According to the base pair rule for RNA, Adenine and Uracil (A - U) are base complements while Guanine and Cytosine (G - C) are base complements. So if;

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then,

tRNA: UAC.

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