INHERITANCE AND VARIATION biology MCQ’s questions answers

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INHERITANCE AND VARIATION

Question 21 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The process of mating between closely related individuals is ..... [CBSE 1994]
A
Self breeding
B
Inbreeding
C
Hybridization
D
Heterosis
Question 22 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In a dihybrid cross AABB & time; aabb, F2 progeny of AABB, AABb, AaBB and AaBb occurs in the ratio of .....[CBSE 1994]
A
1:1:1:1
B
9:3:3:1
C
1:2:2:1
D
1:2:2:4
Question 23 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When both alleles express their effect on being present together, the phenomenon is called ..... [DPMT 2008]
A
Dominance
B
Codominance
C
Pseudodominance
D
Amphidominance
Question 24 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A child with mother of A group and father of AB group, will not have the following blood group..... [CPMT 2005]
A
A
B
B
C
AB
D
O
Question 25 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following cross determines heterozygosity or homozygosity ..... [Tamil nadu 2001]
A
Monohybrid cross
B
Dihybrid cross
C
Test cross
D
Back cross
There are 25 questions to complete.

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