Which combination of chromosome in mankind give birth to a male child?
A. X of male and X of female
B. X of male and Y of female
C. Y of male and X of female
D. Y of male and Y of female
Answer: Option C
A. X of male and X of female
B. X of male and Y of female
C. Y of male and X of female
D. Y of male and Y of female
Answer: Option C
Which one of the following techniques can be used to establish the paternity of a child?
A. Protein analysis
B. Chromosome counting
C. Quantitative analysis of DNA
D. DNA fingerprinting
When one gene controls two or more different characters simultaneously, the phenomenon is called
A. Apomixis
B. Pleiotropy
C. Polyploidy
D. Polyteny
The first crime ever solved using the DNA fingerprinning technique was in England in the year
A. 1963
B. 1973
C. 1983
D. 1993
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