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NEET Biology Solved Question Paper 2010

Multiple Choice Questions

51.

Radula is found in

Pila sp.
Chiton sp.
Lamellidens sp.
Pinctada sp.

52.

Which phase comes in between the G₁ and G₂ phases of cell cycle?

M - phase
G₀- phase
S - phase
Interphase

53.

How many effective codons are there for the synthesis of twenty amino acids?

54.

Chromosome is made up of

DNA and pectin
RNA and DNA
DNA and histone
only histone

55.

Cell division cannot be stopped in which phase of the cell cycle?

G₁- phase
G₂- phase
S- phase
Prophase

56.

Cell theory is not applicable for

bacteria
fungus
algae
virus

57.

The difference between systolic and diastolic pressure in human is

120 mm Hg
80 mm Hg
40 mm Hg
200 mm Hg

58.

Which one of the following viruses contains is a DNA and RNA?

Cyanophage
Herpes virus
Leuko virus
Polio virus

59.

How many variable segments are present in the basic structure of antibody molecule?

One
Two
Three
Four

60.
Transposons are

house-keeping genes

jumping genes

transporting genes

stationary genes

jumping genes

Transposons are sequences of DNA that can move around to different positions within the genome of a single cell, a process called transposition. They are also known as jumping genes and can cause mutations. They were discovered by Barbara McClintock, for which she was awarded a Nobel prize in 1983.

Housekeeping genes are constitutive genes that are required for maintenance of basic cellular function and are expressed in all cells of an organism under normal and patho- physiological conditions.