Download SBI3U 5.1 5.2 Quiz Review

Cellular Reproduction
and Chromosomes
Chapter Five: Cellular
Reproduction and Chromosomes
5.1 and 5.2 (5.3 after the last slide)
1. What is the continuous
sequence of growth and
division known as?
• The Cell Cycle
2. True or False? The
growth stage is known as
Mitosis.
• False- The growth stage is
known as interphase.
3. The division of a
cell’s nucleus is known
as
•
•
•
•
A. Meiosis
B. Mitosis
C. Metaphase I
D. Prophase I
4. What is each
chromosome made up
of?
• Two sister chromatids
5. Gametes, either egg or
sperm, are ___ which
means they contain only
one copy of each type of
chromosome that the
diploid parent cell
contains.
• Haploid
6. Give examples of
mitosis.
• When a starfish loses an arm as a
result of an attack by a predator, a
new arm is regenerated by the
process of mitosis.
• Cells that do not function properly
are replaced by mitosis.
• Cells are replaced when they die
through mitosis.
7. True or False? The
centromere within the
nucleus holds the genetic
info needed to maintain the
cell and to make new
copies of the cell.
• False- chromosomes
8. What does the
centromere do?
• Holds together the sister
chromatids
9. The _____ cell divides to
produce two new _____
cells.
• Parent, daughter
10. How many chromosomes
do all human somatic (body)
cells have?
•
•
•
•
A. 24
B. 21
C. 42
D. 46
11. What are the four
phases of mitosis?
•
•
•
•
Prophase
Metaphase
Anaphase
Telophase
12. What happens
before mitosis begins?
• Interphase
13. During which phase of
mitosis do the chromatids
reach the two opposite
poles within the cell?
• Telophase (the 4th phase)
14. During which phase of
mitosis do the spindle fibres
attach to the centromere of
the replicated chromosomes?
• Metaphase (the 2nd phase)
15. During which stage of mitosis
does chromatin condense and
thicken to form visible duplicated
chromosomes?
• Prophase (the 1st phase)
16. During which phase of mitosis
are the chromatids pulled to
opposite poles of the cell?
• Anaphase (the 3rd phase)
17. What is the separation
of the cytoplasm and the
formation of two new
daughter cells called?
•
•
•
•
A. Cytokinesis
B. Mitosis
C. Meiosis
D. Genetic Variation
18. What are some of the
causes of mutations?
• Various mutagens such as toxic
compounds (smoke, chemicals, etc),
radiation or viruses
19. What are genes called
that can be activated by a
mutation?
• Oncogenes
20. True or False? Meiosis
is a special type of cell
division that occurs only in
reproductive organs.
• True
21. True or False? The first
part of meiosis that reduces
the chromosome number
from diploid to haploid is
known as crossing over.
• False- Reduction Division
22. How many autosomes
and sex chromosomes
does each human sperm or
egg cell contain?
• A. 20 autosomes, 2 sex
chromosomes
• B. 24 autosomes, 1 sex
chromosome
• C. 22 autosomes, 1 sex
chromosome
• D. 22 autosomes, 2 sex
chromosomes
25. True or False?
Homologous chromosomes
are identical.
• False- similar but not identical
26. What type of
chromatids do not belong
to the same chromosome
and undergo crossing
over?
• Non-sister chromatids
27. True or false?
The random positioning of
tetrads along the cell’s
equator is called crossing
over.
• False – independent assortment
28.True or false?
The production of gametes
is known as
gametogenesis.
• True
29. The process of male
gamete production in
animals is called ________,
and the female gamete
production is called ______?
• Spermatogenesis, Oogenesis
30. The re-assortment of
chromosomes and genes
carried through crossing
over is known as _______?
• Genetic recombination
31. The diploid germ cells
that start Oogenesis and
spermatogenesis are
called _______?
•
•
•
•
A)
B)
C)
D)
Ooganius, Spermaganius
Egg, Sperm
Oogonium, Spermatogonium
Oogoogle, Spermagoogle
32. True or false?
The failure of
chromosomes to separate
properly is known as
nonjunction.
• False - Nondisjunction
33. What is it called when
all the cells that develop
from the zygote have an
extra chromosome?
• Trisomy
34. True or false?
A zygote containing three
sets of chromosomes is
called polyploid, and an
organism having more than
two sets of chromosomes
are called triploid.
• False – triploid, polyploid
35. True or false?
The transmission of genes that are
located on one of the sex
chromosomes is called
chromosome theory of inheritance.
• False – sex–linked inheritance
36. The combined research
of Mendel, Sutton, and
Boveri formed the basis of
what?
• Chromosome theory of inheritance
37. What is the inactivated
X chromosome called?
•
•
•
•
A)
B)
C)
D)
Barr body
Golgi body
Barrd body
Carr body
38. What are Punnett
squares used for?
• To predict the outcome of
crosses of genes.
39. What is it called when
many traits are controlled
by more than one gene?
• Polygenic Inheritance
40. What is a range of
variation in a trait called?
•
•
•
•
A. Modifier genes
B. Continuous variation
C. Variation genes
D. Modifier traits
You got it!
39. Give an example of a
trait in humans that
involves modifier genes.
• Eye color