16. Cdks bind with __________ , enabling the Cdks to function as enzymes.

A. MPF
B. cyclins
C. histones
D. p⁵⁸

17. Which of the following is not a part of a human chromosome in any phase?

A. Centriole
B. Histone
C. Nucleosome
D. Centromere

18. During which phase, a cleavage furrow is formed in animal cells?

A. C
B. G₁
C. G₂
D. M

19. In which phase, each chromosome replicates to produce two sister chromatids?

A. Anaphase
B. Interphase
C. Metaphase
D. Prophase

20. Microtubules grow from the poles to kinetochores of each chromatid during

A. prophase
B. metaphase
C. anaphase
D. telophase