MH SET 2023 Paper 2 Life Sciences Question Paper (26-Mar-2023)

Question 1

Phages are collected from an infected E.coli donor strain of genotype ser+, gly+, leu+ and used to transduce a recipient of genotype ser–, gly–, leu–. The treated recipient population is plated on a minimal medium supplemented with leucine and serine. Many colonies grew. Which one of the following combination of genotypes is appropriate for the colonies that grew ?

Accepted Answer

ser–, gly+, leu+; ser+, gly+, leu+; ser+, gly+, leu–

Answer

ser–, gly–, leu+; ser+, gly–, leu+; ser+, gly–, leu–

Answer

ser+, gly+, leu+; ser+, gly–, leu+; ser+, gly–, leu–

Answer

ser–, gly+, leu+; ser+, gly–, leu+; ser+, gly–, leu–

Question 2

Mark the most INCORRECT statement with respect to mammalian below :

Accepted Answer

Maximum carbon dioxide is transported as bound to hemoglobin

Answer

Very small quantity of oxygen is transported as dissolved in plasma

Answer

Least amount of carbon dioxide is transported as dissolved in plasma

Answer

Increased carbon dioxide in blood favours release of oxygen from hemoglobin

Question 3

The following are certain statements regarding secondary metabolites found in plants. Among the following, which is FALSE ?

Accepted Answer

Phenylalanine is an intermediate in the biosynthesis of most plant alkaloids

Answer

Alkaloids are nitrogen containing compounds

Answer

All terpenes are derived from five carbon isoprene units

Answer

Flavanoids contain 15 carbons arranged in two aromatic rings connected by a 3 carbon bridge

Question 4

In the absence of oxygen, the metabolic fate of pyruvic acid will be :

Accepted Answer

It will be utilized for reoxidation of NADH

Answer

Its partial oxidation will take place

Answer

Its complete oxidation will take place

Answer

It will be utilized depending on energy need

Question 5

Which of the following statement for Gibberellins is NOT CORRECT ?

Accepted Answer

Gibberellins can regulate cell cycle

Answer

Gibberellins regulate transition from juvenile to adult phases

Answer

Gibberellins promote seed germination

Answer

Gibberellins are synthesized via the terpenoid pathway

MH SET 2023 Paper 2 Life Sciences Question Paper (26-Mar-2023)

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