SSC MTS EXAM

SSC

BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which sequence of DNA bases would pair with this partial strandATG TGA CAG
A
ATG TGA CAG
B
TAC ACT GTC
C
GTA AGT GAC
D
CAT TCA CTG
Explanation: 

Detailed explanation-1: -Answer. Answer: which sequence of DNA bases would pair with this partial strand: ATG TGA CAG? (G) pairs with cytosine(C) and vice versa.

Detailed explanation-2: -DNA base pair. Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together.

Detailed explanation-3: -A always pairs with T with two hydrogen bonds and G always pairs with C with three hydrogen bonds. So if one strand is ATGCTTGA then the complementary strand will be TACGAACT.

Detailed explanation-4: -Therefore, the complementary sequence for GCATGACAT will be CGTACTGTA.

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