1
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Given below are two statements.

Statement I - In Meselson and Stahl's experiment the samples were separated by using CsCl equilibrium gradients.

Statement II - ${ }^{15} \mathrm{~N}$ is a heavy isotope and can be separated based on density gradient.

In the light of above statements, select the correct option given below:

A

Both statement I and statement II are correct.

B

Both statement I and statement II are incorrect.

C

Statement I is correct but statement II is incorrect.

D

Statement I is incorrect but statement II is correct.

2
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Given below are two statements with reference to measurement of blood pressure.

Statement I - The appearance of Korotkoff sounds for the first time due to release of external pressure indicates diastolic pressure. Statement II - The disappearance of Korotkoff sounds for the first time due to release of external pressure indicates systolic pressure.

In the light of above statements, select the correct option given below:

A

Both statement I and statement II are correct.

B

Both statement I and statement II are incorrect.

C

Statement I is correct but statement II is incorrect.

D

Statement I is incorrect but statement II is correct.

3
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

In tissue culture technique, to maintain aseptic conditions the nutrient medium is autoclaved at constant pressure of _________ $\mathrm{lb} / \mathrm{sq}$ inch for continuous __________ minutes.

A

10,15

B

15,15

C

15,20

D

20,20

4
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the following does not show suspend type of adaptation?

A

Dormancy of seeds.

B

Hibernation of polar bear

C

Aestivation in some snails

D

Movement of birds to a more hospitable location during stress