Genetic Basis of Inheritance MCQ Test 2

Genetic Basis of Inheritance MCQ Test 2

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Question 1
Number of characters studied by Mendel in Pea was
A
5
B
7
C
6
D
4
Question 2
AaBb individual produces 2 million gametes. How many of them would carry both the recessive alleles (ab)
A
1.5 million
B
1.0 million
C
0.5 million
D
0.25 million
Question 3
A double homozygous yellow round plant of Pea is crossed with green wrinkled plant. The offspring shall be of
A
One type
B
Two types
C
Four types
D
Several types
Question 4
A dihybrid cross is made between YYrr and yyRR, In F2 generation the ratio of parental to recombinant phenotype is
A
9 : 7
B
6 : 10
C
10 : 6
D
7 : 9
Question 5
Percentage of pure breeding F2 individuals of a monohybrid cross would be
A
75%
B
50%
C
25%
D
12.5%
Question 6
Double homozygous individuals in F­2­ generation of a dihybrid cross would be
A
1/16
B
2/16
C
6/16
D
9/16
Question 7
Ratio between completely homozygous dominant and homozygous recessive individuals of a dihybrid cross is
A
1 : 1
B
2 : 2
C
6 : 10
D
10 : 6
Question 8
Ratio of parental and recombinant phenotypes in a dihybrid cross would be
A
8 : 8
B
6 : 10
C
10 : 6
D
9 : 7
Question 9
Which mendelian principle will not operate if two genes under study are close together
A
Paired unit factors
B
Dominace
C
Segregation
D
Independent assortment
Question 10
In a monohybrid cross the ratio of F2 true breeding dominant and true breeding recessive would be
A
50 : 50
B
25 : 25
C
75 : 25
D
25 : 75
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There are 10 questions to complete.

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