Question # 1

Haem portion of hemoglobin is same to porphyrin ring with a difference of.

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Carbon atom

Hydrogen atom

Iron atom

Oxygen atom

In earthworm exchange of gases mainly takes place through.

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Gills

Lungs

Skin

Ostla

According to Lock and key model , the activate is.

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Soft structure

Flexible structure

Rigid structure

Attractive structure

Amino acids are linked to each other by

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Ester bond

Glyosidic bond

Peptide bond

Hydrophobic bond

One of the following has no upper inclusions.

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Deer

Dog

Bear

Pig

Margulis and Schwartz accommodate the diverse assemblage orf organism of Protista into.

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37 phyla

27 Phyla

10 Phyla

5 Phyla

The enzyme with optimum pH 5.50 is

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Arginase

Sucrase

pepsin

Enter kinase

Percentage of carbohydrates in mammalian cell.

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1%

4%

6%

8%

Which of the following is not true for guard cells.

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Present in epidermis

Lack chloroplast

Bean like

Kidney shaped

The unit of life is called.

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Organ

Cell

Tissue

None of these

Round worm are.

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Acoelomates

Pseudocoelomates

Coelomates

None of them

Asexual reproduction requires only a single parental organism which gives rise to offspring by

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Mitotic cell division

Meiotic cell division

Both a and b

None of these

How many base pairs are found in the human gamine.

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Three billion

thirty billion

Five billion

Forty billion

In myelinated neurons the impulse jumps from node to node (node of Ranvier) This is called

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Myelinated impulse

Jumping impulse

Saltatory impulse

None of these

Hatching period of chick is.

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15 days

18 days

21 days

28 days

Which one is not desert.

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Thar

Thal

Sahara

Talga

During progeny luteotropic hormone LTH and placental lactogen stimulate Mammary development in preparation for.

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Gestation

Lactation

Miscarriage

After birth

Menstrual cycle is called.

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Menopause

emotinal stress

Menstruation

Malnourishment effect of cycle.

From Hensen's node,dorsal mesoderm is formed and is organized into

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Segments

Fragments

Somitcs

Remains

Awoman with normal colour vision, whose father was red-green colour blind, married a red-green colour-blind man. What is the probality of her first-born child being red-green colour blind?

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1.0

0.75

0.50

0.025

Which one is absent in animal cells.

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spindle

Centriole

Chromatids

Phragmoplast

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

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Bone

Cartilage

Muscle

Joint

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