AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

STRUCTURE OF NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If one side of the DNA reads:TTGACTAGG, then the complementary set of bases on the other side would read:
A
TTGACTAGG
B
AACTGATCC
C
AATCGAACTT
D
AAGTCATCC
Explanation: 

Detailed explanation-1: -So, in translation, adenine turns into thymine, and guanine turns into cytosine, and vice-versa. So, the complementary side would read TACGGCA .

Detailed explanation-2: -Figure 9.8 The two strands of DNA are complementary, meaning the sequence of bases in one strand can be used to create the correct sequence of bases in the other strand. Because of the complementarity of the two strands, having one strand means that it is possible to recreate the other strand.

Detailed explanation-3: -Answer and Explanation: The complementary DNA strand of the sequence ATGC will be TACG. The complementary base pairing in DNA is as per the Chargaff’s rules. According to these rules, purines always hydrogen bond with pyrimidines and vice-versa.

Detailed explanation-4: -Within double-stranded DNA, the nitrogenous bases on one strand pair with complementary bases along the other strand; in particular, A always pairs with T, and C always pairs with G. Then, during DNA replication, the two strands in the double helix separate.

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