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• AIPMT 2014/
• AIPMT Solved Paper 2011/
• Biology

Biology 2011

  

Q. 40. Which one of the following shows maximum genetic diversity in India? 

1. Mango
2. Groundnut
3. Rice
4. Maize

Sol:

Rice has more than 50,000 genetically different strains, while mango has 1000 varieties in India.

Answer: (3)

 

Q. 41.  Which one of the following is not a biofertilizer?

1. Mycorrhiza
2. Agrobacterium
3. Rhizobium
4. Nostoc

Sol:

Agrobacteriumis a gene transfer agent.

Answer: (2)

 

Q. 42.   Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?

1. Skin
2. Epithelium of Urogenial tract
3. Tears
4. Monocytes

Sol:

Physiological barriers to the entry of micro-organisms in human body are tears in eyes, saliva in mouth and HCl in stomach.

Answer: (3)

 

Q. 43. Which one of the following helps in absorption of phosphorus from soil by plants?

1. Anabaena
2. Glomus
3. Rhizobium
4. Frankia

Sol:

Glomus is a endomycorrhiza for phosphorus absorption.

Answer: (2)

 

Q. 44.   'Himgiri' developed by hybridisation and selection for disease resistance against rust pathogens is a variety of

1. Wheat
2. Chilli
3. Maize
4. Sugarcane

Sol:

This variety is resistant against leaf and stripe rust, hill bunt.

Answer: (1)

 

Q. 45.   Which of the followings is mainly produced by the activity of anaerobic bacteria on sewage?

1. Marsh gas
2. Laughing gas
3. Propane
4. Mustard gas

Sol:

It is by the activity of methanogens.

Answer: (1)