Question # 1

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

Which can convert glucose to glucose 6 phosphate

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Hexokinase

Glucokinase

Phospho fructokinase

Both a & b

If the distance of 20 map units is found among two linked loci what would be the percentage of cross gametes

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40%

60%

20%

10%

How many kinds of rhodopsins, a blue cone monochromate will have

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3

2

1

No rhodopsins

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

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Morgan

Bridges

Correns

De Varies

Which enzyme deficiency leads to phenylketonuria

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Phenylalanine oxidase

Phenylalanine hydroxylase

Phenylalanine synthase

Phenylalanine carboxylase

Bilirubin

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Turns skin Yellow

Damages brain cells

Causes jaundice

All of these

Homogenetistic acid is oxidized rapidly when exposed to air, turning the urine

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White

Purple

Blue

Black

The chances of which hemophilia is equal in males & females

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A

B

C

All

What is the 5th amino acid in sickle cell beta chain

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Histidine

Proline

Leucine

Valine

Genes can be mapped on chromosomes on the basis of

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Sex linkage

Assortment

Recombination frequency

Gene sequencing

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

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Histidine

Valine

Proline

Leucine

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%

Blood pressure is also an example of _______ trait

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Multifactorial

Qualitative

Single genic

Both a & b

Sickle cell mutation affects

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One beta chain

Both beta chains

Only alpha chain

None of the alpha or beta chain

SRY in located at the tip of

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Short arm of X-chromosome

Short arm of Y-chromosome

Long arm of Y-chromosome

Long arm of X-chromosome

Mutatuons are inherited only if they occur in the

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Gland cells

Gametes

Muscle cells

Somatic cells

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

Mutation of one or two N-bases is

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Inversion

Point mutation

Deletion

Chromosomal aberrations

How may gene pairs contribute to the wheat grain colour?

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one

two

three

four

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