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If the DNA macromolecule contains 20% G (guanine), then by Watson-Crick complementarity it must contain 20% C (cytosine). Together this equals 40%, so the percent that is A (adenine) and T (thymine) together is 60%. By Watson-Crick complementarity, then, the percent A in the molecule is half of 60: 30%.

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13y ago
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13y ago

there is 20% t, so there should be 20% a

60% is leftover for g and c, so you divide it

and it would be 30% g and 30% c

the answer is 30&

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13y ago

the strand is found to contain 30 % adenine so we going to have 27 percent thymine and 20% cytosine

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15y ago

30 percent 30 percent

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14y ago

30 % guanine

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13y ago

30%

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14y ago

30 percent

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Q: A double-stranded DNA molecule contains 30 percent guanine (G) What is the percent cytosine (C) in this molecule?
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What nucleotide bonds with guanine?

Guanine bonds to Cytosine in DNA through three hydrogen bonds. It also bonds to a Deoxyribose molecule in the backbone of the DNA molecule.


A double-stranded DNA molecule contains 30 percent guanine What is the percent cytosine in this molecule Where is the promoter region?

30 percent


Which bases does Guanine always bond with to form a pair in DNA?

In a DNA molecule cytosine always pairs with guanine, the same is true for an RNA molecule.


Name the four bases found in a DNA molecule?

guanine cytosine thymine adenine (an RNA molecule replaces thymine with uricel)


In a DNA molecule guanine always pairs with?

Guanine always pairs with cytosine


The number of cytosine in a DNA molecule equals the number of?

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What bases are found in DNA?

Adenine, Thymine, Guanine, and Cytosine


Which two bases are present in equal amounts in a double-stranded DNA molecule?

The two bases that are present in equal amounts in a double stranded DNA molecule are cytosine and guanine. Cytosine pairs with guanine in A DNA molecule.


What does DAN contains?

DNA contains adenine, thymine, guanine, and cytosine.


What 4 bases does Rna contain?

The four bases in RNA are Cytosine, Guanine, Adenine and Uracil


What base always base pairs with guanine?

In a DNA molecule cytosine always pairs with guanine, the same is true for an RNA molecule.


Do uracil always pair with cytosine in the RNA molecule?

Cytosine is always coupled with Guanine. (I like to remember that the round letters stick together).In DNA, Thymine is coupled with Adenine, but in RNA, Thymine is replaced by Uracil.Therefore, in RNA, U and A go together, always.