Question # 1

Which fo these is NOT a genetic variation.

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Attached earlobes

Blood group

Eye colour

Mark of cut on skin

In humans, a sperm has 23 chromosomeds. Egg cell has.

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23 chromosomes

46 chromosomes

No chromosomes

69 Chromosomes

The basic physical and functional unit of heredity is called.

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DNA

RNA

Centronere

Gene

The DNA molecule consists of ............ strands.

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Two

Three

Four

Five

In maize, there are hromosomes.

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14

16

20

48

Genes are located on

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Chromosomes

Nucleus

Centrosomes

Cell membrane.

In meiosis, the nucleus of a cel dividies.

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One time

Three times

Four times

Five times

The cells which are produced as a result of cell division are called.

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Parent

Primary

Secondary

Daughter

A process by which a cell divides into two daughter cells.

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Life Cycle

Cell division

Cell Cycle

Alternationof generation.

Nucleus is a part of cell, which ................ the whole cell actively.

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Operate

Control

Observe

Functionale

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