Question # 1

100 ml of arterial blood of human being contains CO2

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50 ml

54 ml

56 ml

58 ml

The are ecologically important as bio indicators of air pollution.

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Lichens

Yeast

Viruses

Mycorrhizae

The renal vein brings the impure blood form.

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Brain

Kidney

Lungs

Liver

Metameric ally segmented animals are belonging to the.

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Annelids

Molluscus

cnidarians

Echinoderms

Blood provides immunity

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Leukocytes

Platelets

RBC

Lymphocytes

Energy poor inorganic oxidized compounds are reduced to energy rich carbohydrates during.

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Respiration

Photosynthesis

Growth

Development

Tentacles is a characteristic of

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Snall

Amoeba

euglena

Hydra

Hydrogen bonds between adenine and thymine.

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Two

Four

Three

Five

Air spaces between mesophyll cells of a leaf comprise ______ of the total volume

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20%

30%

40%

50%

In sponges asexual reproduction takes place by budding. The internal buds are called.

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Globules

Gemmules

Endosperm

Cyst

In earthworm exchange of gases mainly takes place through.

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Gills

Lungs

Skin

Ostla

The Syndrome which is an example of trisomy of the sex chromosome is

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Turner's syndrome

Down's syndrome

Klinefelter's syndrome

Tay-Sach's syndrome

Positive gravitropism of root is due to.

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Auxin

gibberellin

Abscisic acid

Ethene

If an mRNA is synthesized with the differnt codons, what is the minimum number of amino acids in the protein that is formed by the mRNA?

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64 Amino acids

62 Amino acids

60 Amino acids

None of them

RNA polymerase II synthesize.

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mRNA

tRNA

rRNA

cDNA

Chances for a son or daughter in human birth are:

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3:1 between son and daughter

1:3 between son and daughter

1:1 between son and daughter

None of them

The pigment free area that appears at the time of fertilization is called.

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embryo

Gray crescent

Yolk

White cytoplasm

Reptiles and birds are.

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Viviparous

Ovlparous

Marsupial

Ovoviviparous

Parathyroid hormone acts to ensure that

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Calcium levels in the blood never drop too low

Sodium levels in urine are constant

Potassium levels in the blood do not escalate

The concentration of water in the blood is sufficient

If the condon consisted of only two nucleotides, there would be how many possible condons?

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4

8

₂₀

16

Germ cells in the ovary produce many

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Spermatogonia

Zoospores

Zygospores

Oogonia

Cystic fibrosis patients lack a gene that codes for trans membrane carrier of.

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Chloride ion

Calcium ion

Sodium ion

Magnesium ion

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