Question # 1

Which can convert glucose to glucose 6 phosphate

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Hexokinase

Glucokinase

Phospho fructokinase

Both a & b

In case of sickle cell anemia, in place of glutamic acid, _________ is found

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Histidine

Valine

Proline

Leucine

Rh factor is encoded by

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2 genes which occupy 3 loci

3 genes which occupy 2 loci

2 genes which occupy 2 loci

3 genes which occupy 3 loci

Which phenomenon reduces the chances of genetic recombination and variations among offspring ?

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linkage

crossing over

independent assortment

dominance

What will be the risk of heamophilia in sons if father is haemophilic and mother is normal

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0%

20%

25%

50%

If six cells out of 10, do crossing over what will be percentage of cross over gametes

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60%

30%

40%

50%

Degenerated testes are present in abdomen in which of these cases

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Down's syndrome

Klinefelter's sysndrome

Turner's syndrome

Testicular ferminization

Blood pressure is also an example of _______ trait

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Multifactorial

Qualitative

Single genic

Both a & b

Queen victoria was having which kind of haemophilia

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A

B

C

None

Mutatuons are inherited only if they occur in the

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Gland cells

Gametes

Muscle cells

Somatic cells

Man has ____________ linkage group

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23

21

25

46

How may gene pairs contribute to the wheat grain colour?

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one

two

three

four

Anti-Rh antibodies appear in plasma

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During first few months

During last months

Only when stimulated

If Rh⁺individual mistakenly receives Rh^-blood

What happens when both alleles of a gene pair independently express in a heterozygote?

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dominance

incomplete dominance

over dominance

codominance

Mutation may be caused by

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Chemicals

Radiations

Mutagens

All of these

What are chances for having Rh-ve baby if one parent is Rh+ve and (homozygous) and other is Rh-ve

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25%

50%

100%

0%

Who for the first time found white eye mutant in drosophila ?

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Morgan

Bridges

Correns

De Varies

Insulin receptors are present in

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Cytoplasm of muscle cells

Cell membrane of liver cells

Cell membrane of muscles and liver cells

Cell membrane of all body cells

Which of these traits zigzags from meternal grand father through a carrier daughter to a grandson ?

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autosomal

X-linked

Y-linked

X and Y linked

When a single gene has multiple phenotypic effects, the phenomenon is called:

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condominance

epistasis

pleiotropy

sex-linkage

A change in one or more bases of DNA, which results in the formation of an abnormal protein is

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Moulting

Transformation

Mutation

Fission

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