Download Unit 3 Test Review

Chapter 8 Test Review
Mitosis
Question
1. As a cell grows – which grows fast – volume or surface
area?
2. What are three reasons that cells divide?
3. What is true about the chromosomes of the new cells
after cell division?
4. What two types of cells divide on a daily basis (fast)?
5. How do cells know when to stop growing?
6. When a group of cells has uncontrolled growth – what
is this called?
7. What are the three (3) stages of cell division?
8. What is the difference between mitosis and
cytokinesis?
9. What is the smallest form of genetic material
10. What is the largest form of genetic material before it
is in the form of chromatin, visible only during cell
division?
11. What is chromatin?
12. What phase doe mitosis happen
13. What are the special proteins that DNA coils around
called?
14. How are sister chromatids joined?
15. What does #14 connect to during mitosis?
16. How many chromosomes does the human body cell
contain?
17. When we say that the human body cell is diploid –
what does this mean?
18. What are the 3 stages of interphase?
19. During which phase of interphase is there cell growth
and protein production?
20. During which phase of interphase does the DNA
replicate?
21. During which phase of interphase do the organelles
replicate?
22. What form is the DNA in during interphase?
23. What are the two main parts of a chromosome
24. What are the two main stages of cell division
Answer
Volume

Too large to get stuff in/out

Low surface to volume ration

Small cell can manage itself better
The are duplicated so each new cell has
a complete set
Skin and digestive tract cells

When they bump into each other

STOP/OFF switch

As a cut heals
Cancer
Interphase, mitosis, and cytokinesis
Mitosis is the nucleus dividing whereas
cytokinesis is the whole cell dividing
Double helix
chromosome
Condensed DNA
M phase
Histones
By a centromere
Spindle fibers
46
That it has the 2n number of
chromosomes – 46
G1, S, and G2
G1
S
G2
Chromatin
chromatids
Mitosis and cytokinesis
25. What are the 4 phases of mitosis(cell division) – in
order?
26. What phase of mitosis is the longest?
27. What is the first phase of mitosis where
chromosomes are visible?
28. During which phase of mitosis do centrioles start to
move to the poles and spindle fibers appear?
29. During which phase of mitosis do chromosomes attach
to the spindle fibers and line up in the middle?
30. During which phase of mitosis do the centromeres
split and pull sister chromatids apart?
31. During which phase of mitosis do chromosomes uncoil
and go back into chromatin?
32. During which phase of mitosis does a nuclear envelop
form around each new nuclei?
33. What is present at the end of mitosis?
34. What process moves inward and pinches in the middle
to form two cells?
35. What forms before the cell wall at the end of the cell
cycle in plants?
36. What is the result of the cell cycle
37. What is the advantage of sexual reproduction?
38. In eukaryotes what regulates the timing of the cell
cycle?
39. What is the chromosome number of a gamete
40. What is the chromosome number of a somatic cell
41. How many alleles do gametes have for each gene
42. What is meiosis?
43. The process of changing genetic information during
prophase in meiosis?
44. Tetrads are formed during what phase of meiosis
45. What is the result of meiosis?
46. Which type of reproduction makes genetically
identical offspring?
47. Female egg cells produce what chromosome?
48. Males can produce 50% each of what type of
chromosome, what are they?
49. pre-programmed, deliberate cell death
50. A photographic inventory of homologous chromosomes
Prophase, metaphase, anaphase,
telophase
Prophase
Prophase
51. What is a homologous chromosome?
One that has the same size, shape and
codes for the same trait.
Super male
Super female
Klienfelter’s
Turner’s
52. What do the following stand for?
XYY
XXX
XXY
Prophase
Metaphase
Anaphase
Telophase
Telophase
One cell – two nuclei
Cytokinesis
Cell plate
2 new identical cells
Genetic diversity
cyclins
n
2(n)
1
The production of gametes
Crossing over
prophase
4 genetically different haploid cells
Asexual
X
X or Y
apoptosis
Karyotype
XO
53. What is the failure of chromosomes to separate
equally?
nondisjunction