Meiosis and mitosis practice test

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M & M TEST

1. HOW MANY CHROMOSOMES DO HUMANS HAVE IN EACH CELL NUCLEUS PRIOR TO CELL

DIVISION?

A. 23 B. 56 C. 46 D. 106 E. 92

2.WHICH STAGE OF MITOSIS IS THE LONGEST

3-6 LIST THE FOUR STAGES OF MITOSIS IN ORDER.

7. IF AN ORGANISM HAS 24 CHROMOSOMES IN A SKIN CELL. WHAT IS THE N NUMBER?

A. 24 B. 48 C. 12 D. 6

8.

9.

IF AN ORGANISM HAS 24 CHROMOSOMES IN A LIVER CELL. WHAT IS 2N NUMBER?

A. 24 B. 48 C. 12 D. 6

WHAT HAPPENS TO THE NUCLEOLUS IN THE PROPHASE?

10. HOW MANY CHROMATIDS ARE THERE IN ONE TETRAD?

A. 2 B. 4 C. 6 D. 8

11. IF AN ORGANISM HAS 2N=56. HOW MANY CHROMATIDS ARE THERE IN A TETRAD?

A. 112 B. 4 C. 12 D. 2 E. 92

12. HOW MANY PAIRS OF AUTOSOMES ARE THERE IN A HUMAN CELL?

A. 2 B. 46 C. 92 D. 23 E. 22

13. HOW MANY SEX CHROMOSOMES ARE THERE IN A HUMAN CELL NUCLEUS?

A. 3 B. 4 C. 5 D. 2 E. 10

14. CAN CROSSING-OVER OCCUR WITH A DYAD?

A. YES B. NO

15. WHAT TYPE OF CELL DOES NOT HAVE CENTRIOLES?

A. PLANT B. ANIMAL

16. IF AN ORGANISM HAS 2N=92 CHROMOSOMES. HOW MANY CHROMOSOMES ARE THERE IN

THE N STATE?

17. WHICH STAGE OF THE CELL LIFE CYCLE IS THE MOST ACTIVE?

18. HOW MANY DAUGHTER CELLS ARE PRODUCED AT THE END OF MEIOSIS II?

19. WHAT IS THE TECHNICAL NAME FOR THE CYTOPLASM DIVIDING?

20. WHAT DOES THE TERM KARY MEAN?

A. NOTHING B.TRUE C.NUCLEUS D.BREAK APART

21-22 NAME TWO FUNCTIONS OF MITOSIS.

23. IN WHAT STAGE OF MITOSIS ARE THE DYADS LINED UP IN THE MIDDLE OF THE CELL?

24. IN WHAT STAGE OF MEIOSIS DO YOU SEE TETRADS?

A. PROPHASE I B. METAPHASE II

INTERPHASE II

C. PROPHASE II D.

25. IN WHAT STAGE OF MITOSIS DO THE CHROMATIDS SEPARATE AT THE CENTROMERE?

26. IF A SKIN CELL OF CERTAIN ORGANISM HAS 12 CHROMOSOMES. HOW MANY

CHROMOSOMES ARE THERE IN THE CELLS OF THE LIVER?

A. 24 B. 12 C. 48 D. 96 E. 6

1

27. IF AN ORGANISM HAS 12 CHROMOSOMES IN ITS SKIN CELLS HOW MANY WOULD BE IN THE

FEMALE EGG CELL AFTER MEIOSIS?

A. 12 B. 24 C. 3 D. 6 E. 49

28. IN WHAT STAGE DOES CROSSING-OVER OCCUR?

A.

B.

PROPHASE II

ANAPHASES II

C. METAPHASE II

D. METAPHASE I

E. PROPHASE I

29. HOW MANY CHROMOSOMES ARE THERE IN THE EGG CELL OF AN OGRANISM IF ITS

KIDNEY CELLS CONTAINS 72 CHROMOSOMES IN A NUCLEUS?

30. WHAT TYPE OF CHORMOSOMES DO NORMAL MALES HAVE?

A. XX B. XY C. YY D. XXY

31.

CELLS THAT RESULT FROM MITOSIS HAVE IDENTICAL:

E. YYX

A. KINDS OF PROTEINS

B. NUMBERS OF PROTEINS

C. GENETIC INFORMATION

D. KINDS AND NUMBERS OF PROTEINS

E. NUMBERS OF MITOCHONDRIA

32. FEMALES ARE BORN WITH THEIR EGGS IN

A. PROPHASE 1 B.METAPHASE 2 C.PROPHASE 2 D.INTERPHASE 1

E.ANAPHASE 1

33. SISTER CHROMATIDS ARE:

A. DUPLICATE CHROMOSOMES HELD TOGETHER BY A COMMON CENTROMERE

B. SPECIALIZED GAMETE-FORMING CELLS

C. NON-FUNCTIONAL CHROMOSOMES

D. HOMOLOGOUS PAIRS OF CHROMOSOMES

E. DIFFERENT IN THEIR GENETIC CONTENT

34. MITOSIS IN HUMANS USUALLY RESULTS IN THE FORMATION OF:

A. 2 DIPLOID CELLS

B. 4 DIPLOID CELLS

C. 2 HAPLOID CELLS

D. 4 HAPLOID CELLS

E. SPERM OR EGG CELLS

35. GENETICALLY DIVERSE OFFSPRING RESULT FROM

A. MITOSIS.

B. CLONING.

C. SEXUAL REPRODUCTION.

D. CYTOKINESIS.

E. ANAPHASE.

FOR QUESTIONS 36-39 USE THE FOLLOWING:

A. XXX B.XY C.XO D.YO E.XXY

36. KLINEFELTERS SYNDROME 37. NON VIABLE 38. TURNERS SYNDROME 39. METAFEMALE

40. DESCRIBE THE MEANING OF NON DISJUNCTION

2

3

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