Principle Of Inheritance And Variation Question 562

Question: Assertion : Sequences of bases in one polynucleotide chain of DNA can determine the sequence of bases in the other chain Reason : A = T and C - G.

Options:

A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C) If the assertion is true but the reason is false

D) If both the assertion and reason are false

Show Answer

Answer:

Correct Answer: B

Solution:

Although A = T and C ΒΊ G, there is no any restriction or sequence of bases in one polynucleotide chain.

Since A is always linked to T and C to G as determined from the above evidences, sequence of bases in one of polynucleotide should determine the sequence of bases in the other polynucleotide of the double helix.



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