1
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Arrange the following cell layers/structures around the female gamete, from outer to inner side :

A. Zona pellucida

B. Perivitelline space

C. Corona radiata

D. Plasma membrane of ovum

Choose the correct answer from the options given below :

A

$D, B, A, C$

B

$\mathrm{C}, \mathrm{A}, \mathrm{D}, \mathrm{B}$

C

$\mathrm{C}, \mathrm{A}, \mathrm{B}, \mathrm{D}$

D

$\mathrm{A}, \mathrm{C}, \mathrm{B}, \mathrm{D}$

2
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

What is the reason behind production of large holes in 'Swiss Cheese'?

A

The production of large amount of $\mathrm{CO}_2$ by Propionibacterium sharmanii

B

The production of large amount of $\mathrm{CO}_2$ by Clostridium butylicum

C

The production of large amount of $\mathrm{CO}_2$ and $\mathrm{H}_2$ by lactic acid bacteria called Lactobacillus

D

The production of large amount of $\mathrm{CO}_2$ and $\mathrm{H}_2$ by Trichoderma polysporum

3
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

The toxin proteins isolated from Bacillus thuringiensis, coded by which of the following genes would contrl cotton bollworms and corn borer, respectively?

A

cryIAc and cryIAb

B

crylAc and cryllAb

C

cryllAb and crylAc

D

cryIAc and cryIIIAb

4
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Ecological pyramids represent the relationship between the organisms at different trophic levels and they are generally inverted for:

A

Pyramid of number in grassland

B

Pyramid of energy in pond ecosystem

C

Pyramid of biomass in grassland

D

Pyramid of biomass in sea