1. Mitosis/Meiosis How are they different?

2. This type of cell division used by bacteria to reproduce
The exchange of DNA between the chromatid arms on homologous pairs is called ________________
Crossing over
This type of cell division
used by bacteria to reproduce
Binary fission

3. Independent assortment
The mixing up of maternal and paternal chromosomes as they move apart during anaphase I is called ______________
Independent assortment
The pairing up of homologous chromosomes during prophase I
is called _________________
synapsis

4. During which phase does this happen?
This diagram is
showing
_________________
Crossing over
During which phase does this happen?
PROPHASE I of meiosis

5. Is it MITOSIS or MEIOSIS?
Makes 2 daughter cells ______________
Makes haploid cells _______________
Divides twice but copies DNA once __________________
Used to repair injuries ______________
mitosis
meiosis
meiosis
mitosis

6. Is it MITOSIS or MEIOSIS?
Makes 4 daughter cells ______________
Makes diploid cells _______________
Copies DNA every __________________
time it divides
Used to make gametes ______________
Meiosis
mitosis
mitosis
meiosis

7. Is it MITOSIS or MEIOSIS?
Makes 2n cells ______________
Crossing over happens _______________
Used when organisms __________________
grow bigger
Used in sexual reproduction ___________
mitosis
meiosis
mitosis
meiosis

8. Is it MITOSIS or MEIOSIS?
Testes and ovaries do it ____________
Body cells do it _______________
Crossing over happens ____________
Divides twice ______________
in a row
meiosis
mitosis
meiosis
meiosis

9. Is it MITOSIS or MEIOSIS?
Independent assortment_____________
happens
Divides just once_______________
Used in oogenesis __________________
Makes cells identical
to parent cell __________________
meiosis
mitosis
meiosis
mitosis

10. Type of cell division shown
meiosis
Body organ where you would expect to
see the above happen
Ovary or testes

11. Type of cell division shown
mitosis
Tell one reason why a cell would
do this
Grow organism bigger
Repair injuries
Replace worn out cells Asexual reproduction

12. IN humans where does oogenesis happen?
ovaries
IN plants and some algae the diploid multicellular organism is called a ________________
sporophyte

13. The small cells produced when the cytoplasm divides unevenly during oogenesis are called ______________
Producing offspring without using sperm or eggs in which the DNA comes from only 1 parent
Polar bodies
Asexual reproduction

14. The production of mature sperm is called ___________________
TRUE or FALSE
Polar bodies will go on to become mature eggs
FALSE; they will die
The production of mature sperm is
called ___________________
spermatogenesis

15. A cell with only one copy of each chromosome is called ___________
Type of reproduction in which offspring are produced by combining the genetic material from 2 parents
A cell with only one copy of each chromosome is called ___________
Sexual reproduction
Haploid OR 1n

16. A cell which has 2 copies of every chromosome is called _____________
diploid OR 2n
Type of division that makes daughter cells which are different from the parent cell and different from each other
meiosis

17. The production of a mature egg is called ____________________
oogenesis
Phase in which INDEPENDENT ASSORTMENT happens
Anaphase I

18. Crossing over OR independent assortment
Name 2 ways the DNA in cells gets recombined in new ways during meiosis
Crossing over OR independent assortment
Phase during which SYNAPSIS happens
Prophase I

19. Spermatogenesis produces ____ mature sperm cells 4
Phase in which CROSSING OVER happens
Prophase I

20. How many mature eggs are produced during oogenesis?
Only 1; the other 3 are polar bodies
Chromosomes that do NOT determine sex are called
____________
autosomes

21. Tell one phase that is different in meiosis than in mitosis
Prophase I- Synapsis & crossing over
Anaphase I- homologous partners separate instead of sister chromatids; independent assortment Metaphase I- homologous pairs line up together Interphase II- No DNA is copied

22. tetrad The group of 4 chromatids of a homologous pair is called a
________________
tetrad
This picture of an organism’s chromosomes is called a
_______________
karyotype

23. How many autosomes do humans have?
44; 46 – 2 sex chromosomes
A human with 2 X chromosomes is a _________
male female
female

24. The joining of sperm and egg cells is called _________________
fertilization
A fertilized egg is called a
_________________
zygote

25. Tell how metaphase I and metaphase II are different
Metaphase I- homomolgous partners line up together
Metaphase II- chromosomes line up separately

26. IN humans where does spermatogenesis happen?
testes
In plants and some algae the haploid multicellular organism is called a ________________
gametophyte

27. A human cell containing 22 autosomes and a Y chromosome is a
A human cell containing 22 autosomes and a Y chromosome is a. a somatic cell of a male b. a zygote c. a somatic cell of a female d. a sperm cell e. an ovum.
Homologous chromosomes move toward opposite poles of a dividing cell during a. mitosis b. meiosis I c. meiosis II d. fertilization e. binary fission.
Sperm cell
Meiosis I
Campbell and Reese Self quiz

28. D Still X; chromosomes haven’t split yet
Meiosis II is similar to mitosis in that a. homologous chromosomes synapse b. DNA replicates before the division c. the daughter cells are diploid d. sister chromatids separate during anaphase e. the chromosome number is reduced.
If the DNA content of a diploid cell in the G 1 phase of the cell cycle is x, then the DNA content of the same cell at metaphase of meiosis I would be a x b. 0.5 x c. x d. 2 x e. 4 x. D
Still X; chromosomes haven’t split yet
Campbell and Reese Self quiz

29. Meiosis II is similar to mitosis in that a
Meiosis II is similar to mitosis in that a. homologous chromosomes synapse b. DNA replicates before the division c. the daughter cells are diploid d. sister chromatids separate during anaphase e. the chromosome number is reduced.
The immediate product of meiosis in a plant is a a. spore. b. gamete. c. sporophyte. d. gametophyte. e. zygote. D
SPORE
Campbell and Reese Self quiz

30. D Still X; chromosomes haven’t split yet
Meiosis II is similar to mitosis in that a. homologous chromosomes synapse b. DNA replicates before the division c. the daughter cells are diploid d. sister chromatids separate during anaphase e. the chromosome number is reduced.
If the DNA content of a diploid cell in the G 1 phase of the cell cycle is x, then the DNA content of the same cell at metaphase of meiosis I would be a x b. 0.5 x c. x d. 2 x e. 4 x. D
Still X; chromosomes haven’t split yet
Campbell and Reese Self quiz

31. 2X cell copies DNA in S after G1, but hasn’t split yet
If the DNA content of a diploid cell in the G 1 phase of the cell cycle is x, then the DNA content of the same cell at metaphase of meiosis I would be a x b. 0.5 x c. x d. 2 x e. 4 x
If we continued to follow the cell lineage from the cell above, then the DNA content at metaphase of meiosis II would be a x b. 0.5 x c. x d. 2 x e. 4 x
2X cell copies DNA in S after G1, but hasn’t split yet
X- Back to X again; Cell has reduced # in meiosis I
Campbell and Reese Self quiz

32. Multicellular haploid organisms a. are typically called sporophytes. b
Multicellular haploid organisms a. are typically called sporophytes. b. produce new cells for growth by meiosis. c. produce gametes by mitosis. d. are found only in aquatic environments. e. are the direct result of fertilization.
Crossing over usually contributes to genetic variation by exchanging chromosomal segments between a. sister chromatids of a chromosome b. chromatids of nonhomologues c. nonsister chromatids of homologues d. nonhomologous loci of the genome e. autosomes and sex chromosomes. C B
Campbell and Reese Self quiz

33. D In comparing the typical life cycles of plants and
animals, a stage found in plants but not in animals is a
a. gamete. b. zygote c. multicellular diploid. d. multicellular haploid D
Campbell and Reese Self quiz

34. B Which of the following life cycles is seen in plants?
A B C
Animals Plants Most fungi & some algae & some protists

35. A Which of the following life cycles is seen in animals?
A B C
Animals Plants Most fungi & some algae & some protists

36. The following life cycles is seen in animals.
Haploid gametes fuse to produce a 2n zygote
via which process?
FERTILIZATION

37. The following life cycles is seen in animals.
Diploid organisms produce haploid gametes via which process?
MEIOSIS

38. The following life cycles is seen in animals.
A diploid zygote becomes a diploid multicellular adult via which process?
MITOSIS

39. The following life cycles is seen in plants and some algae
The following life cycles is seen in plants and some algae. Diploid organisms produce haploid spores via which process?
MEIOSIS

40. The following life cycles is seen in plants and some algae
The following life cycles is seen in plants and some algae. Haploid spores produce haploid multicellular gametophytes via which process?
MITOSIS

41. The following life cycles is seen in plants and some algae
The following life cycles is seen in plants and some algae. Haploid multicellular gametophytes produce haploid gametes via which process?
MITOSIS

42. The following life cycles is seen in plants and some algae
The following life cycles is seen in plants and some algae. Haploid gametes produce a diploid zygote via which process?
FERTILIZATION