If a specimen contains 30% adenine in its dna, how much cytosine will it contain? 40% 30% 20% 10% 15%

The specimen will contain 20% cytosine in it's DNA.

COMPONENTS OF DNA:

Since G = C and A = T

G + C + A + T = 100%

G + C + 30 + 30 = 100

G + C = 100 - 60

G + C = 40%

G/C = 40/2 = 20%

Therefore, G or C will be 20% each. Hence, the specimen will contain 20% cytosine in it's DNA.

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most community's take hundreds of years to become stable

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds