Question # 1

In seminiferous tubules repeated division of the germinal epithelium produce

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Oogonia

Zoogonia

Ovogonia

Spermatogonia

Testosterone is secreted by

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Sertoli cells

Interstitial cells

Prostrate gland

Germinal epithelium

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

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Plasmid

Carrier

Vector

Lifter

Phragmoplast is formed by vesicles originated from.

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Endoplasmic reticulum

Golgi complex

Mitochondria

Chloroplast

The position of gene one chromosome is called. its.

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Allele

Phenotype

Locus

Genotype

How many million nucleotides are in DNA of typical human chromosome

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140

160

180

200

Abdomen has a peritoneal cavity lined by a thin epithelium called

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Pericardium

Peritoneum

Scrotal sac

Pleura

From beginning of the 3^rd month of pregnancy the human embryo is referred to as the

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Foetus

Kid

Kitten

CUb

In the chick the mesodermal cells migrate and caudally from both sides and create a mid line thickening called

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Primitive streak

Excretion

Ultra-streak

Blastoderm

Endangered species of plants have been recorded to more than.

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300

500

600

800

During gastrulation the blastoderm splits into two layers, an upper layer of cells is called.

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Hypoblast

Area pellucida

Epiblast

Area Opaca

Which one of the following is excretophore.

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Stem

Leaves

Roots

Bark

Shape of the plant cell does not change greatly compared with an animal cell because it is surrounded by a rigid

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Cell membrane

Capsule

Sheath

Cell wall

Fresh water flatworms excrete very dilute

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Plasma

Tissue fluid

Fluid

Urine

Hypophosphatemia rickets is an X linked.

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Dominant trait

Over dominant trait

co dominant trait

Recessive trait

Fertilization of the ovum normal occurs:

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In the upper thrid of the oviduct

In the lower thrid of the oviduct

In the uterus

Can take place succcessfully in vegina

Fibroblasts and osteoblasts migrate into the fracture site and begin to construct

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Bone

Cartilage

Muscle

Joint

Which is the end of muscle which remain fixed when then muscle contracts.

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Insertion

Origin

Tendon

Belly

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