Mitosis and Meiosis answers

1) chromatids are attached to one another.

2) a replicated chromosome

3) centromere

4) 10

5) a cell plate begins to form at telophase, whereas animals a cleavage furrow is initiated at that stage.

6) c

7) e

8) d .

9) b

10) two nuclei.

11) The daughter cells have the same number of chromosomes and the same amount of DNA.

12) the fibers of the mitotic spindle.

13) prophase

14) prophase, prometaphase, metaphase, anaphase, telophase, cytokinesis.

15) dinoflagellates diatoms

16) mitosis

17) metaphase

18) G₀

19) b

20) a

21) e

22) c

23) e

24) cyclins.

25) They are not subject to cell cycle controls.

26) interphase.

27) prophase.

28) prometaphase.

29) two chromosomes and four chromatids.

30) eight

31) the complete complement of an organism's genes

32) the precise sequence of the DNA within each of the chromosomes

33) a display of every pair of homologous chromosomes within a cell, organized according to size and shape

34 metaphase

35) called "sex chromosomes" because they determine an individual's sex.

36) 12

37) There are 8 homologous pairs.

38) II, III, and IV

39) zygotes.

40) gametophyte mitosis

41) gametes

42) haploid, and the chromosomes are composed of two chromatids.

43) They have half the number of chromosomes and one-fourth the amount of DNA.

44) crossing over

45) Homologous chromosomes are separated.

46) Four haploid cells result.

47) prophase I

48)by allowing independent assortment of chromosomes by allowing random fertilization by allowing crossing over

49) about 8 million

50) the random and independent way in which each pair of homologous chromosomes lines up at the metaphase plate during meiosis I.

51) fertilization

52) telophase I

53) anaphase I.

54) VII

55) II

56) I

57) a

58) b

59) e

60) 5, 2, 4, 3, 1

61) 3