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Statement I: Non-homologous DNA selectively attaches to a DNA probe.

Statement II: Two complementary DNA strands undergo annealing at high temperatures.


 

Option: 1

Statement I is correct.


Option: 2

Statement II is correct.


Option: 3

Both Statements I and II are correct.

 


Option: 4

Both Statements I and II are incorrect.


Answers (1)

best_answer

Statement I claims that non-homologous DNA selectively attaches to a DNA probe. However, this statement is incorrect. Non-homologous DNA refers to DNA sequences that do not possess significant similarity or complementarity to the DNA probe. Therefore, non-homologous DNA is unlikely to attach or hybridize to a DNA probe.

Statement II states that two complementary DNA strands undergo annealing at high temperatures. This statement is also incorrect. Annealing typically occurs at lower temperatures, allowing the complementary DNA strands to bind together and form a stable double-stranded structure. At high temperatures, DNA strands tend to denature or separate rather than anneal.

Therefore, since both statements are incorrect, the correct answer is Option 4.

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seema garhwal

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