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MDCAT Biology Chapter 8 Evolution Online Test MCQs With Answers

Question # 1

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

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No rhodopsins

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Question # 2

There are ________ total possible genotypes of blood group ABO system

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Question # 3

How may gene pairs contribute to the wheat grain colour?

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one

two

three

four

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Question # 4

Sickle cell mutation affects

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One beta chain

Both beta chains

Only alpha chain

None of the alpha or beta chain

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Question # 5

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

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Question # 6

Pseudo-autosomal genes are present on

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X-chromosome

Y-chromosome

Both a & b

Autosomes

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Question # 7

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

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Question # 8

A phenotype which can't be expressed in heterozygous state but can only be expressed other in homo or hemi form, would be

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Dominant

Bombay

Recessive

Ordinary

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Question # 9

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

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condominance

epistasis

pleiotropy

sex-linkage

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Question # 10

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

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Histidine

Valine

Proline

Leucine

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Question # 11

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

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