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MDCAT Biology Chapter 9 Life process in Animals & Plants Online Test MCQs With Answers
Question # 1
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
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Question # 2
What is the 5th amino acid in sickle cell beta chain
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Histidine
Proline
Leucine
Valine
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Question # 3
Man has ____________ linkage group
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23
21
25
46
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Question # 4
The two linked genes A and B with a 30% recombination frequency must be
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15 units apart
30 units apart
60 units apart
90 units apart
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Question # 5
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
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Question # 6
How many kinds of rhodopsins, a blue cone monochromate will have
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3
2
1
No rhodopsins
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Question # 7
Genes can be mapped on chromosomes on the basis of
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Sex linkage
Assortment
Recombination frequency
Gene sequencing
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Question # 8
When a haemophilic carrier woman marries a normal man, who among her offspring may be affected
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all her children
all her daughter
half of her daughter
half of her sons
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Question # 9
Point mutation occurs in
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Sickle cell anemia
Phenylketonuria
Alkaptonuria
All
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Question # 10
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 # 11
What happens when both alleles of a gene pair independently express in a heterozygote?
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dominance
incomplete dominance
over dominance
codominance
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Question # 12
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 # 13
Which can convert glucose to glucose 6 phosphate
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Hexokinase
Glucokinase
Phospho fructokinase
Both a & b
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Question # 14
Rh factor is encoded by
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2 genes which occupy 3 loci
3 genes which occupy 2 loci
2 genes which occupy 2 loci
3 genes which occupy 3 loci
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Question # 15
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 # 16
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 # 17
The chances of which hemophilia is equal in males & females
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A
B
C
All
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Question # 18
What are chances for having Rh-ve baby if one parent is Rh+ve and (homozygous) and other is Rh-ve
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25%
50%
100%
0%
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Question # 19
There are ________ total possible genotypes of blood group ABO system
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3
4
6
7
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Question # 20
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
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Question # 21
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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