Question # 1

How many different kinds of the gametes will be formed by an ndividual , who is hetrozygous for four gene pairs:

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8

16

20

30

Endosymbiont hypothesis explains origin of.

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cell

Prokaryotic cell

Eukaryotic cell

Ribosome

Union of gametes is called.

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Fertilization

Spermatogensis

oogenesis

Gametegenesis

The human embryo is referred to as the fetus from beginning of.

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3rd month

3rd week

6th months

6th week

The removal of apex release that lateral buds from the apical dominance. It is called

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Inhibitory effect

Compensatory effect

Apical dominance

Reproduction

The average cell cycle in human is.

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24 hours

26 hours

28 hours

30 hours

Fruit development without fertilization is

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Dormancy

Climacteric

Parthenocarpy

Parthenogenesis

If fertilization does not occur the corpus luteum starts

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Progesterone

Menstrual cycle

Degenerating

Regenerating

The joints that allows movement is several directions is called.

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Fibrous joint

synovial joint

Ball and socket joint

Hing joint

Meiosis occurs only in

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Haploid cell

Diploid cells

Pentaploid cells

Triploid cells

Human skin colour is also a quantitative trait which is controlled by

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3 - 6 gene pairs

1 - 3 gene pairs

None of these

Which of the following is common in all neurons?

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A cell body which contains a nucleus

A thick myelin sheath

Presence of nodes of Ranvier

Presence of Schwann cells

Human appendix, coccyx and nictiating membrane of the eye are:

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Vestigical organs

Homologous organs

Analogous organs

Embroyonic organs

Clear cytoplasm produces.

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Muscle cells

Gut

Larval epidermis

Notochord

Similarity in characteristics resulting from common ancestry is known as:

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Analogy

Homology

Evolutionary relationship

Phylogeny

The means by which recombinant DNA is introduced into a host call is called

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Plasmid

Carrier

Vector

Lifter

Patient of cystic fibrosis often die due to numerous infections of.

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Digestive tract

Excretory tract

Respiratory tract

Reproductive tract

Which hormone induces labour pain

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LTH

LH

Oxytocirl

Lactogen

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