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Len [333]
3 years ago
11

14. If 30% of a DNA sample is made up of thymine, T, what percentage of the sample is made up of

Chemistry
1 answer:
mote1985 [20]3 years ago
7 0

Answer:

20%

Explanation:

Okay so the phrase apples in trees ( Adenine & Thymine ) and cars in garages  (Cytosine & Guanine ) can help in this situation.

Since Thymine is 30%, Adenine will also be 30%. This gives you 60% of the DNA sample.

You have 40% left of the DNA sample so they must be Cytosine and Guanine.

Divide 40% by 2 and you get 20%. So you have 20% Guanine and 20% Cytosine.

Hope it helps!

: )

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