Question # 1

Reduction of chromosomes takes place during.

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Mitosis

Meiotic -I

Meiotic -II

Both mitosis and meiotic -II

During reproduction, living things pass their characteristics to their.

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Parents

Grand parents

Off spring

Brother and sister

Zygote is formed by the fusion of.

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Two sperm cells

Two egg cells

Two somatic cells

Sperm cell andegg cell

In man, every somatic cell has chromosomes.

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23

46

16

20

Nuclear division in followed by.

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Cytoplasm

Nucleus

Chromosomes

Cytokinesis

In pea, there are chromosomes.

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14

16

20

48

The basic physical and functional unit of heredity is called.

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DNA

RNA

Centronere

Gene

The characters which are passed from parents to off spring.

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Environmental characters.

Naturla characters

Non -inheritable characters.

Hereditary characters.

You are different from your brother and sisters This is called

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Adaptation

Variation

Mitosis

Hereditary

In maize, there are hromosomes.

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14

16

20

48

Before mitosis, sets of chromosomes are.

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Two

Three

Four

Five

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