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MDCAT Biology Chapter 8 Evolution Online Test MCQs With Answers

Question # 1

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

Choose an answer

Chromosome 16 alpha; chromosome 11 beta

Chromosome 11 alpha; chromosome 16 beta

Chromosome 11

Chromosome 16

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Question # 2

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

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White

Purple

Blue

Black

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Question # 3

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

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20%

25%

50%

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Question # 4

Diabetes is the leading cause of

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Kidney failure

Adult blindness

Heart disease

All of these

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Question # 5

Color blindness, haemophilia and gout form linkage group onj

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Chromosome 9

Chromosome 19

x-chromosome

y-chromosome

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Question # 6

Mutation may be caused by

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Chemicals

Radiations

Mutagens

All of these

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Question # 7

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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Question # 8

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

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Question # 9

Bilirubin

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Turns skin Yellow

Damages brain cells

Causes jaundice

All of these

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Question # 10

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 # 11

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

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linkage

crossing over

independent assortment

dominance

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