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Class XII Biology Molecular Basis of Inheritance 3

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Question 1

Which of the following DNA sequences qualifies to be designated as a palindrome?

Question 2

If the total amount of adenine and thymine in a double-stranded DNA is 45%, the amount of guanine in this DNA will be

Question 3

If the total amount of adenine and thymine in a double stranded DNA is 60%, the amount of guanine in this DNA will be

Question 4

Radioactive thymidine is fed to cells about to enter S-phase. It will make radioactive

Question 5

A mixture containing DNA fragments, a, b, c and d with molecular weights of a + b = c, a > b and d > c, was subjected to agarose gel electrophoresis. The positions of these fragments from cathode to anode sides of the gel would be

Question 6

In Kranz anatomy, the bundle sheath cells have

Question 7

A recessive mutant is one which is

Question 8

In a plant, red fruit (R) dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTT genotype is crossed with a plant that is rrtt. Then

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Jun 19NEET & AIIMS