List of top Biology Questions

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : Respiration involving proteins as respiratory substrate is called floating respiration.

Reason (R) : Respiration involving carbohydrates and fats as respiratory substrate is called protoplasmic respiration.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : Root nodules of legumes are internally pinkish or red coloured.

Reason (R) : The legume root nodules contain leghaemoglobin.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : The principle of vaccination is based on the property of memory cells of the immune system.

Reason (R) : Vaccines generate memory B cells and T cells that recognise the pathogen quickly.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : In C3 cycle, the first stable compound is 3C compound. 

Reason (R) : In C4 plants Calvin cycle is absent.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : Baculovirus are biocontrol agents of genus nucleopolyhedrovirus. 

Reason (R) : They are effective against plant pathogens

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : Opioids are drugs derived from Papaver somniferum. 

Reason (R) : Opioids slow down metabolism and produce hallucinations.

In the light of the above statements, choose the correct answer from the options given below