Question # 1

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

A heterrozygote offspring quantitatively exceeds the phenotypic expression of both the homozygote parents due to:

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dominance

incomplete dominance

over dominance

codominance

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

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Morgan

Bridges

Correns

De Varies

In sickle cell beta chain glutamic acid is replaced by valine which is sixth amino acid from

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N-Terminal

C-Terminal

R-Terminal

H-Terminal

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

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3

2

1

No rhodopsins

A carrier mother for colour blindness does not have

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A normal boy

A carrier boy

A colour blind boy

A normal daughter

Mutatuons are inherited only if they occur in the

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Gland cells

Gametes

Muscle cells

Somatic cells

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

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Histidine

Proline

Leucine

Valine

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

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White

Purple

Blue

Black

Diabetes is the leading cause of

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Kidney failure

Adult blindness

Heart disease

All of these

Genes can be mapped on chromosomes on the basis of

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Sex linkage

Assortment

Recombination frequency

Gene sequencing

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

Genes for alpha and beta chains of hemoglobin are found on which chromosomes?

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Chromosome 16 alpha; chromosome 11 beta

Chromosome 11 alpha; chromosome 16 beta

Chromosome 11

Chromosome 16

Pseudo-autosomal genes are present on

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X-chromosome

Y-chromosome

Both a & b

Autosomes

Which of the following traits is not sex-linked recessive ?

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haemophilia

colour blindness

hypophosphatemic ricket

tfm syndrome

The chances of which hemophilia is equal in males & females

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A

B

C

All

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

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condominance

epistasis

pleiotropy

sex-linkage

A blue cone monochormate

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Can perceivetwo colours

Can't perceiveany colour

Can perceive only blue colour

Can perceive only red colour

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

Interaction of two loci

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Pleiotropy

Epistasis

Dominance

Differentiation

There are ________ total possible genotypes of blood group ABO system

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3

4

6

7

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