3/16/2017
Quizizz: Question Set
Quizizz
Name :
CH. 7 Meiosis & Sexual Reproduction
Date :
1. 2. Class :
Meiosis involves ______ divisions of the nucleus: meiosis I & meiosis II. a)
2
b)
4
c)
0
d)
3
Before meiosis begins, the DNA in the original cell is _________. Thus, meiosis starts with homologous
chromosomes. 3. a)
destroyed
b)
dissolved
c)
replicated
d)
donated
________ is a form of cell division that halves the number of chromosomes when forming reproductive
cells, such as gametes or spores. (Example 2n--> n)
4. a)
Mitosis
b)
Meiosis
c)
Binary fission
d)
Budding
__________ occurs when portions of a chromatid on one homologous chromosome are broken and
exchanged with the corresponding chromatid portions of the other homologous chromosome. (Hint:
allows for genetic variation.) 5. 6. a)
Deletion
b)
Inversion
c)
Fragmentation
d)
Crossing-over
Meiosis starts with __________ chromosomes. (Hint: chromosomes are paired up). a)
heterogeneous
b)
homologous
c)
homeostasis
d)
heterotrophic
The chromosomes of each homologous pair are pulled to opposite poles of the cell by the spindle
fibers. a)
telophase I
b)
anaphase II
c)
telophase II
d)
anaphase I https://quizizz.com/print/quiz/58c9c34a5695cedb66ea2f3b
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7. 8. 9. Quizizz: Question Set
Chromosomes gather at each of the poles. a)
metaphase II
b)
anaphase II
c)
Metaphase I d)
Telophase I A new spindle forms around the chromosomes. a)
Telophase I b)
Prophase III
c)
Prophase II
d)
Telophase II The pairs of homologous chromosomes are moved by the spindle to the equator of the cell. a)
Metaphase II
b)
Anaphase II
c)
Metaphase I
d)
Telophase II 10. The chromatids (now called chromosomes) are pulled by the spindle fibers to opposite poles of the cell. a)
telophase I
b)
anaphase II
c)
telophase II
d)
anaphase I 11. The chromosomes (no longer homologous pairs) line up along the equator and are attached at their
centromeres to spindle fibers. a)
metaphase II
b)
anaphase I
c)
metaphase I
d)
telophase II 12. The centromeres divide. a)
telophase I b)
anaphase I c)
telophase II
d)
anaphase II 13. The cell begins cytokinesis, forming four haploid cells. a)
telophase I
b)
metaphase I
c)
telophase II
d)
anaphase II 14. Crossing-over occurs during which stage of meiosis? a)
prophase II
b)
prophase I
c)
anaphase II
d)
telophase II
15. A nuclear envelope forms around each of the four sets of chromosomes. a)
telophase II
b)
anaphase II
c)
telophase I
d)
anaphase I https://quizizz.com/print/quiz/58c9c34a5695cedb66ea2f3b
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3/16/2017
Quizizz: Question Set
16. Cytokinesis occurs, forming two (not four) haploid cells. a)
telophase I
b)
anaphase II
c)
anaphase I
d)
telophase II 17. Homologous chromosomes pair up, forming tetrads. (Tetrad = a group or set of four.) a)
metaphase II
b)
Metaphase I
c)
Prophase II
d)
Prophase I
18. The nuclear envelope breaks down. a)
telophase I
b)
anaphase II
c)
prophase I
d)
telophase II 19. The random distribution of homologous chromosomes during meiosis is called
a)
independent assortment
b)
random fertilization
c)
crossing-over
d)
all of the above 20. The pace of _________ (AKA change over time) is sped up by genetic recombination. a)
mitosis
b)
reproduction
c)
evolution
d)
meiosis
21. A(n) __________ is created by the random joining of two gametes. (Hint: sperm + egg = ???) a)
zygote
b)
sperm
c)
gamete
d)
egg
22. ________ is a mechanism allowing for genetic variation. a)
Independent assortment
b)
Crossing-over
c)
Random fertilization
d)
All of the above 23. Asexual reproduction allows organisms to produce ________ offspring over a ________ period of time,
without using energy to produce gametes or to find a mate. a)
few/long
b)
many/short
c)
few/short
d)
many/long
24. The number of genetic combinations that can occur among gametes is a)
only a few.
b)
zero.
c)
150.
d)
practically unlimited.
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Quizizz: Question Set
25. In ______ a single parent passes copies of all of its genes to each of its offspring; there is no fusion of
haploid cells such as gametes. a)
asexual reproduction
b)
sexual reproduction
c)
meiosis II
d)
meiosis I 26. Some multicellular eukaryotes undergo ______, a type of reproduction in which the body breaks into
several pieces that can each turn into a new organism. a)
fission
b)
fragmentation c)
fertilization
d)
alternation of generations
27. In sexual reproduction, two parents (each with 46 chromosomes) form reproductive cells that have
________ of chromosomes. a)
twice the number
b)
the diploid number
c)
the 2n number
d)
one-half the number
28. An individual produced by asexual reproduction is a ________, an organism that is genetically identical
to its parent. a)
clown
b)
gamete
c)
clone
d)
recombinant
29. During ______, a parent separates into two or more individuals of about equal size. (Hint: this is how
bacteria reproduce). a)
fertilization
b)
fission
c)
alternation of generations
d)
budding
30. What sex chromosomes would a male have?
a)
XX
b)
XY
c)
YY
d)
Trisomy Y
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