Download Reproduction.Division.Practice.Test

Cell Division/Reproduction (Mitosis
and Meiosis) Practice Test
Match the Diagram with the caption
A
D
B
C
E
F
•The cytoplasm pinches in half. The chromosomes uncoil back into chromatin.
•ANSWER: C
•What is the name of this phase???
•ANSWER: Cytokinesis
Match the Diagram with the caption
A
D
B
C
E
F
•Two new nuclear envelopes start to form around the chromosomes in opposite ends of the
cell
•ANSWER: B
•What is the name of this phase???
•ANSWER: Telophase
Match the Diagram with the caption
A
D
B
C
E
•Sister chromatids are pulled apart by the spindle
•ANSWER: E
•What is the name of this phase???
•ANSWER: Anaphase
F
Match the Diagram with the caption
A
D
B
C
E
F
•The spindle attaches to the centromere and the chromosomes line up in the middle of the
cell.
•ANSWER: F
•What is the name of this phase?
•ANSWER: Metaphase
Match the Diagram with the caption
A
D
B
C
E
F
•Chromatin condenses into chromosomes, the nuclear envelope breaks down, and the
spindle forms
•ANSWER: A
•What is the name of this phase???
•ANSWER: Prophase
Match the Diagram with the caption
A
D
B
C
E
•The cell grows and copies its DNA
•ANSWER: D
•What is the name of this part of the cell cycle?
•ANSWER: Interphase
F
True or False
 Sexual reproduction requires two parent cells
 ANSWER: True
True or False
 The offspring of an organism that reproduces asexually is
identical to the parent
 ANSWER: True
True or False
 Loose strands of DNA and proteins are called chromatin
 ANSWER: True
True or False
 The place where two sister chromatids attach is called the
centriole
 ANSWER: False
 The place where two sister chromatids attach is called the
CENTROMERE
True or False
 Adults have the same number of cells as babies, but the
adults’ are bigger
 ANSWER: False
 Our cells cannot grow bigger, therefore when an organism
grows it is because it make more cells, not bigger cells
Answer the questions for both Mitosis
and Meiosis
 How many cells made?
 MITOSIS: 2 cells are made from 1
 MEIOSIS: 4 cells are made from 1
Answer the questions for both Mitosis
and Meiosis
 What types of cells are made? Identical or Different
 MITOSIS: Identical Cells are made
 MEIOSIS: Different Cells are made
Answer the questions for both Mitosis
and Meiosis
 What kind of cells are made? Body cells or Gametes
 MITOSIS: Body cells
 MEIOSIS: Gametes
Answer the questions for both Mitosis
and Meiosis
 What kind of reproduction occurs? Asexual or Sexual
 MITOSIS: Asexual
 MEIOSIS: Sexual
Why is it necessary for sex cells to have half
the number of chromosomes as body cells?
 Because if they didn’t have half the number of
chromosomes, after fertilization, the resulting new individual
would have too many chromosomes
 An individual with too many chromosomes will either NOT
survive or will have severe genetic defects
How does prophase of mitosis differ
from prophase 1 of meiosis?
 In Prophase of meiosis homologous chromosomes pair up
and cross over
 This does not happen in prophase of mitosis
How does metaphase of mitosis differ
from metaphase 1 of meiosis
 In metaphase of mitosis the chromosomes line up in a
straight line in the middle to the cell
 In metaphase 1 of meiosis, chromosome pairs line up
in the middle of the cell
Which phase of meiosis is most important
(crucial) in making genetically different sex
cells?
 Prophase of meiosis is most important in making genetically
different sex cells
 Because this is the phase where crossing over occurs
If a body cell of a creature has 20 chromosomes, then how
many chromosomes would that creature’s sex cells have?
 10 chromosomes
 Because sex cells only contain half the number of
chromosomes of regular body cells (somatic cells)
If a frog’s egg cell has 10 chromosomes, how many
chromosomes would be in the body cells of the same
frog?
 20 chromosomes
 An egg cell is a sex cell, therefore it only contains half the
number or regular body cells (somatic cells),
How many chromosomes do “normal”
humans have in their body cells?
 46 chromosomes
 This is the diploid number for humans
How many chromosomes do “normal”
humans have in their sex cells?
 23 chromosomes
 Sex cells only contain half the number of chomosomes as
normal body cells (somatic cells)
another word for sex cells
 Gamete
a male sex cell
 sperm
a female sex cell
 egg
the process of fusing a sperm with an
egg to make a baby
 fertilization
the early, prenatal stages of a developing
baby, right after egg and sperm fuse
 zygote
the number of chromosome pairs; half
the number of chromosomes
 Haploid
the total number of individual
chromosomes
 Diploid
In which stage do cells spend the most
time?
 Interphase
Which of the following statements is NOT true?
A . The advantage of sexual reproduction is that the offspring have variety in
their DNA
B. The advantage of asexual reproduction is that only one parent cell is
needed
C. The disadvantage of sexual reproduction is that 2 parent cells need to
unite
D. The disadvantage of asexual reproduction is that it takes time/effort to
find a partner
 ANSWER: d
 Asexual reproduction does not take a lot of time or very
much effort
Which of the following would have the highest rate of diffusion?
A. a 0.5 cm cell
B. a 0.25 cm cell
C. a 0.125 cm cell
D. a 0.0625 cm cell
 ANSWER: D
 Smaller cells have a larger surface area to volume ratio,
therefore they have MORE surface available for diffusion
Table 1
What kind of cells would be made in cell division process D?
A. body cells
B. sperm or eggs
C. eye cells
D. all of the above
Cell Division Process
Number of
daughter cells
made
Original Cell
Daughter Cells
D
4
diploid
(8
chromosomes)
haploid
(4 chromosomes)
E
2
diploid
(8
chromosomes)
diploid
(8 chromosomes)
•ANSWER: B
•Sperm or eggs would be made from this process because process D is meiosis which
produces sex cells
•The fact that 4 haploid cells are made also indicate that sex cells are being produced
because sex cells are haploid (contain half the number of chromosomes as body cells)
Table 1
How many chromosomes would an adult fruit fly have in an eye cell?
A. 2
b. 4
c. 8
d. 16
Cell Division Process
Number of
daughter cells
made
Original Cell
Daughter Cells
D
4
diploid
(8
chromosomes)
haploid
(4 chromosomes)
E
2
diploid
(8
chromosomes)
diploid
(8 chromosomes)
•ANSWER: C
•An adult fruit fly would have 8 chromosomes in an eye cell because an eye cell is a
body cell (somatic cell) and body cells (somatic cells) contain the diploid number of
chromosomes
Table 1
What would happen if one of the daughter cells in process D had 5
chromosomes?
A. The sex cell (daughter cell) would absolutely not survive.
B. The eye cell (daughter cell) would not be able to “see”.
C. If that sex cell (daughter cell) was used to make a fruit fly, the fruit fly may
have genetic problems.
D. None of the above is possible
Cell Division Process
Number of
daughter cells
made
Original Cell
Daughter Cells
D
4
diploid
(8
chromosomes)
haploid
(4 chromosomes)
E
2
diploid
(8
chromosomes)
diploid
(8 chromosomes)
•ANSWER: C
•Although the sex cell can survive with an extra chromosome, a new individual fruit
fly may not be able to survive or may have genetic problems.
Animal
Bear
Deer
Falcon
Snake
Number of
Number of
chromosomes in chromosomes
body cells
in sex cells
24
12
12
10
4
6
5
2
Unknown Cell A could be:
A. only a body cell from a bear.
B. only a body cell from a deer.
C. only a sex cell from a bear.
D. either a sex cell from a bear or
a body cell from a deer.
•ANSWER: D
•Sample A has 12 chromosomes so it can either be a body cell of a deer (because the
body cell of a deer has 12 chromosomes) or the sex cell of a bear (because the sex cell
of a bear also has 12 chromosomes)
Animal
Bear
Deer
Falcon
Snake
Number of
Number of
chromosomes in chromosomes
body cells
in sex cells
24
12
12
10
4
6
5
2
What cell is from the falcon?
A. unknown Cell B
B. unknown Cell C
C. unknown Cell D
D. None of the unknown cells are
from the falcon.
•ANSWER: B
•Unknown Cell C MUST be the sex cell of a falcon because it contains 5 chromosomes
(the table above shows that the sex cell of a falcon contains 5 chromosomes)
Animal
Bear
Deer
Falcon
Snake
Number of
Number of
chromosomes in chromosomes
body cells
in sex cells
24
12
12
10
4
6
5
2
Cell B is a
A. body cell from a bear.
B. body cell from a snake.
C. sex cell from a deer.
D. sex cell from a snake.
.
•ANSWER: B
•Unkown Cell B contains a total of 4 chromosomes; according to the table above, the
body cell of a snake has 4 chromosomes