MDCAT Biology Chapter 9 MCQ Test With Answer for (Life process in Animals & Plants)

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MCQ's Test For MDCAT Biology Chapter 9 MCQ's Test

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MDCAT Biology Chapter 9 MCQ's Test

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Question # 1

Man has ____________ linkage group

Question # 2

Mutation may be caused by

Question # 3

Queen victoria was having which kind of haemophilia

Question # 4

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

Question # 5

Diabetes is the leading cause of

Question # 6

Rh factor is encoded by

Question # 7

Anti-Rh antibodies appear in plasma

Question # 8

Mutatuons are inherited only if they occur in the

Question # 9

How may gene pairs contribute to the wheat grain colour?

Question # 10

Mutation of one or two N-bases is

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

Insulin receptors are present in

Question # 17

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

Question # 18

A carrier mother for colour blindness does not have

Question # 19

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

Question # 20

Point mutation occurs in

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Sr.# Question Answer
1 What happens when both alleles of a gene pair independently express in a heterozygote?
A. dominance
B. incomplete dominance
C. over dominance
D. codominance
2 The two linked genes A and B with a 30% recombination frequency must be
A. 15 units apart
B. 30 units apart
C. 60 units apart
D. 90 units apart
3 Mutation of one or two N-bases is
A. Inversion
B. Point mutation
C. Deletion
D. Chromosomal aberrations
4 Degenerated testes are present in abdomen in which of these cases
A. Down's syndrome
B. Klinefelter's sysndrome
C. Turner's syndrome
D. Testicular ferminization
5 Anti-Rh antibodies appear in plasma
A. During first few months
B. During last months
C. Only when stimulated
D. If Rh+individual mistakenly receives Rh-blood
6 In sickle cell beta chain glutamic acid is replaced by valine which is sixth amino acid from
A. N-Terminal
B. C-Terminal
C. R-Terminal
D. H-Terminal
7 Mutatuons are inherited only if they occur in the
A. Gland cells
B. Gametes
C. Muscle cells
D. Somatic cells
8 Insulin receptors are present in
A. Cytoplasm of muscle cells
B. Cell membrane of liver cells
C. Cell membrane of muscles and liver cells
D. Cell membrane of all body cells
9 How may gene pairs contribute to the wheat grain colour?
A. one
B. two
C. three
D. four
10 How many kinds of rhodopsins, a blue cone monochromate will have
A. 3
B. 2
C. 1
D. No rhodopsins
11 The chances of which hemophilia is equal in males & females
A. A
B. B
C. C
D. All
12 Two parents of blood group A had a child of blood group O, what will be percentage chances of having such child again
A. 25%
B. 50%
C. 75%
D. None
13 Which of the following traist is transmitted directly from an affected to only its sons?
A. autosomal
B. X-linked
C. Y-linked
D. X and Y linked
14 Mutation may be caused by
A. Chemicals
B. Radiations
C. Mutagens
D. All of these
15 In case of sickle cell anemia, in place of glutamic acid, _________ is found
A. Histidine
B. Valine
C. Proline
D. Leucine
16 Rh factor is encoded by
A. 2 genes which occupy 3 loci
B. 3 genes which occupy 2 loci
C. 2 genes which occupy 2 loci
D. 3 genes which occupy 3 loci
17 Which of the following traits is not sex-linked recessive ?
A. haemophilia
B. colour blindness
C. hypophosphatemic ricket
D. tfm syndrome
18 Sickle cell mutation affects
A. One beta chain
B. Both beta chains
C. Only alpha chain
D. None of the alpha or beta chain
19 Bilirubin
A. Turns skin Yellow
B. Damages brain cells
C. Causes jaundice
D. All of these
20 SRY in located at the tip of
A. Short arm of X-chromosome
B. Short arm of Y-chromosome
C. Long arm of Y-chromosome
D. Long arm of X-chromosome

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