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Definition and Significance of Mutation

In mutations,...

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In mutations,due to non-iodising radiations(UV Rays), thymine dimer is formed due to the formation of covalent bonds. Since there is a DNA bend formed in the strand of the thymine dimer, shouldn't there also be a similar DNA bend in the opposite strand (as adenine is also bound to thymine)?

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Q. Assertion :The two strands of DNA are complementary to each other. Reason: Adenine specifically forms hydrogen bonds with guanine whereas cytosine forms hydrogen bonds with thymine.

Q. In a single-stranded circular DNA the percentage of Thymine is 15%. What will be the percentage of Adenine?

Q. If the total amount of adenine and thymine in a double-stranded DNA is 60% the amount of guainine in this DNA will be

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

Q. How many of the following statements are correct?

A. Coding strand is also called a template strand which gets transcribed to RNA.

B. Template strand is considered as a non-coding strand which gets transcribed to RNA.

C. Coding strand of DNA (sense strand) has the same sequences as transcribed RNA, except for having thymine in place of RNA’s uracil.

D. The template strand of DNA has the same sequences as transcribed RNA.

E. Coding strand (sense strand) has the same sequences as transcribed RNA, except for having uracil in place of RNA’s thymine.

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