1
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
A cross in which an organism showing a dominant phenotype in crossed with the recessive parent in order to know its genotype is called -
A
Dihybrid cross
B
Back cross
C
Monohybrid cross
D
Test cross
2
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
In antirrhinum two plants with pink flowers were hybridized. The F1 plants produced red, pink and white flowers in the proportion of 1 red, 2 pink and 1 white. What could be the genotype of the two plants used for hybridization ? Red flower colour is determined by RR, and White by rr genes -
A
rrrr
B
rr
C
Rr
D
RR
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one of the following symbols and its representation, used in human pedigree analysis is correct –
A
AIPMT 2010 Prelims Biology - Principles of Inheritance and Variation Question 129 English Option 1
B
AIPMT 2010 Prelims Biology - Principles of Inheritance and Variation Question 129 English Option 2
C
AIPMT 2010 Prelims Biology - Principles of Inheritance and Variation Question 129 English Option 3
D
AIPMT 2010 Prelims Biology - Principles of Inheritance and Variation Question 129 English Option 4
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
ABO blood groups in humans are controlled by the gene I. It has three alleles – IA, IB and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur –
A
One
B
Two
C
Three
D
Four
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