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NEET Biology Solved Question Paper 2015

Multiple Choice Questions

51.

Genes for maternal inheritance are located in

Golgi bodies
mitochondria
lysosome
nucleolus

52.

Match the following column I with column II

Column I	Column II
A. Vitamin- B₁	1. Accumulation of fat
B. Gastric juice	2. Loss of fat
C. Starvation	3. Pepsin
D. Obesity	4. Beri- beri

A- 3; B- 4; C- 2; D- 1
A- 3; B- 4; C- 1; D- 2
A- 4; B- 3; C- 1; D- 2
A- 4; B- 2; C- 1; D- 3

53.

Each 100 mL of human arterial blood carries 'P' mL of O₂ and 'Q' mL of CO₂, whereas each 100 mL of venous blood carries 'R' mL of O₂ and 'S' mL of CO₂. Choose the correct values of P, Q, R and S.

P =48 mL; Q=19 - 20 mL; R=52 mL; S = 14 - 15 ml
P= 19 - 20mL; Q= 48 mL; R= 14 - 15mL; S =52 mL
P = 14 - 15mL; Q = 52mL; R = 19 - 20 mL; S = 48mL
P = 52 mL; Q =14 - 15mL; R = 48 mL; S = 19 - 20 mL

54.

The usual cause (s) of peptic ulceration is/are

lower rate of secretion of gastric juice
higher rate of secretion of gastric and duodenal juices
improper neutralisation of gastric juice by duodenal juices
imbalance between the rate of secretion of gastric juice and the degree of protection offered by gastro-duodenal mucosa

55.

Which of the following statements is/are correct regarding the effects of pH on enzyme catalysed reactions?

Direction of the reaction is influenced by [H⁺]
Ionisation state of dissociating groups on the enzyme is modified
Ionisation state of the substrate is modified.
Protein is not denatured with the change in pH

56.
Which of the following statements is/are correct for transduction?

It is observed in Gram positive and Gram negative bacteria.

Bacteria should be in state of competence

Transfer of DNA by a bacteriophage takes place.

Packaging of both host and phage DNA takes place

It is observed in Gram positive and Gram negative bacteria.

Transfer of DNA by a bacteriophage takes place.

Packaging of both host and phage DNA takes place

Transduction is a type of sexual reproduction in bacteria whether it be Gram positive or Gram negative bacteria. It is a process by which DNA is transferred from one bacterium to another by a virus (bacteriophage)involves degradation of host DNA by phage enzymes. B-cell synthesises new phages that incorporate phage DNA and some host DNA also. For transduction to take place, there is no need for the host cell (bacteria) to be component.