AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

STRUCTURE OF NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many different trinucleotides can be made using the DNA nucleotides?
A
4
B
20
C
16
D
64
Explanation: 

Detailed explanation-1: -Five different types of trinucleotide repeats are present in the transcripts of 16 genes known to be associated with TREDs.

Detailed explanation-2: -How many different trinucleotides can be constructed using any of the four nitrogenous bases found in DNA? 64; “Trinucleotide” refers to a three nucleotides sequence.

Detailed explanation-3: -DNA is made up of four building blocks called nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C). The nucleotides attach to each other (A with T, and G with C) to form chemical bonds called base pairs, which connect the two DNA strands.

Detailed explanation-4: -There are 4 different nucleotides present for DNA molecules and there are 4 different nucleotides present for RNA molecules, a total of 8 different nucleotides. The DNA has 4 different nucleotides due to 4 different nitrogenous bases which are Adenine, Thymine, Guanine, and Cytosine.

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