16. How does dosage compensation in Drosophila occur?

A. Hypertranscription of male X chromosome
B. Hypotranscription of female X chromosome
C. X inactivation in females
D. Chimerism

17. Hairy wing character of Drosophila is due to

A. duplication in region of chromosome
B. deletion in region of chromosome
C. due to presence of additional X-chromosome
D. due to a point mutation

18. A diagram depicting chromosomes of haploid set of an organism ordered in a series of decreasing size is known as

A. zymogram
B. chromogram
C. idiogram
D. karyogram

19. A cross-shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of

A. translocation heterozygote
B. deficiency
C. haploid organism
D. duplication

20. In the case of inversion when the inverted segment of chromosome includes centromere, it is known as

A. paracentric inversion
B. double inversion
C. inverted inversion
D. pericentric inversion