GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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phosphate groups
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sugars
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nitrogen bases
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amino acids
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Detailed explanation-1: -The rungs of the DNA ladder made of four types of nitrogenous bases . These are adenine (A), guanine (G), cytosine (C), and thymine (T).
Detailed explanation-2: -Other combinations of the atoms form the four bases: thymine (T), adenine (A), cytosine (C), and guanine (G). These bases are the rungs of the DNA ladder.
Detailed explanation-3: -The inside of the molecule, the “steps” of the staircase, are made of the nucleotide bases Cytosine, Guanine, Adenine, and Thymine. C bonds to G by three hydrogen bonds. A bonds to T by two hydrogen bonds.
Detailed explanation-4: -There are four nucleotides, or bases, in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T).
Detailed explanation-5: -The four different DNA nucleotides are made from the four different nitrogen bases. cytosine (C), guanine (G), adenine (A) and thymine (T). According to the base-pairing rule, cytosine always pairs with guanine and thymine with adenine. DNA holds the genetic information in the order of its nitrogen bases.