1
MHT CET (PCB) 2025 9th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Growth of the pollen tube in ovule is guided by the secretions of
A

polar nuclei

B

egg

C

antipodals

D

synergids

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

Which of the following is NOT the function of erythrocytes?

A

Transport of $\mathrm{CO}_2$

B

Maintenance of viscosity of blood

C

Maintenance of pH of blood

D

Secretion of antitoxins

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

If dark period is interrupted by a flash of red light of 660 nm , then SDP will not flower. But if it is immediately followed by _________ then SDP will flower.

A

far red light of 660 nm

B

far red light of 730 nm

C

red light of 660 nm

D

red light of 730 nm

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

The purposeful manipulation in the heredity of crops and the production of new superior varieties of existing crop plants is called ___________

A

genetics

B

traditional biotechnology

C

horticulture

D

plant breeding