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

Given below are two statements.

Statement I - Microspore is covered by two layered covering called sporoderm.

Statement II - Sporopollenin is not present in the region of germ pores in microspore.

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

The enzyme enterokinase helps in conversion of _________.

A

Protein into polypeptides

B

Trypsinogen into trypsin

C

Casein into coagulated milk protein

D

Pepsinogen into pepsin

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

In an operon, when repressor protein attaches to the operator then __________ .

A

the operator is switched on.

B

the structural genes are expressed.

C

the chemical inducer is synthesized.

D

the structural genes are not expressed.

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

Example of geographical isolation is __________

A

Darwin's finches

B

Mule

C

Australian Marsupials

D

Cichlid fishes