Question

Which of the following statements are correct?(A) DNA microarray is a collection of DNA sequences immobilized on a solid surface that can be probed by hybridization.
(B) Differential centrifugation describes the separation of cell organelles by different rates of sedimentation.
(C) Amino acids that cannot be synthesized by humans but are synthesized by microbes are called essential amino acids.
(D) Equilibrium constant is specific for each chemical reaction.
Choose the correct answer from the options given below:

• A. (A), (B), and (C) only
• B. (A), (B) and (D) only
• C. (A), (C), and (D) only
• D. (B), (C), (D) only

Hint:

Remember, essential amino acids are ”essential” in diet as humans cannot synthesize them, but microbes can.

Answer 1

The Correct Option is A

- (A) Correct: DNA microarrays facilitate gene expression analysis by probing immobilized DNA sequences through hybridization.
- (B) Correct: Differential centrifugation separates cellular organelles based on their sedimentation rates.
- (C) Correct: Essential amino acids, not synthesized by humans, are acquired through diet, with microbes being capable of their synthesis.
- (D) Incorrect: Equilibrium constants are reaction-specific, but this statement does not align with the provided context.