3
MCQ (Single Correct Answer)
Distance between the genes and percentage of recombination shows
A
a direct relationship
B
an inverse relationship
C
a parallel relationship
D
no relationship
4
MCQ (Single Correct Answer)
If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is
A
autosomal dominant
B
autosomal recessive
C
sex-linked dominant
D
sex-linked recessive
5
MCQ (Single Correct Answer)
In sickle-cell anaemia glutamic acid is replaced by valine. Which one of the following triplet codes for valine?
A
G G G
B
A A G
C
G A A
D
G U G
6
MCQ (Single Correct Answer)
Person having genotype $\mathrm{I}^a \mathrm{I}^b$ would show the blood group as AB . This is because of
A
pleiotropy
B
codominance
C
segregation
D
incomplete dominance
7
MCQ (Single Correct Answer)
ZZ/ZW type of sex determination is seen in
A
platypus
B
snails
C
cockroach
D
peacock