WorksheetsCh 8 Cell Reproduction
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
Process in which cell divides twice and produces haploid cells.
a)
Mitosis
b)
Meiosis
c)
Photosynthesis
d)
Replication
2.
Process in which cell divides once and produces diploid cells
a)
Mitosis
b)
Meiosis
c)
Photosynthesis
d)
Replication
3.
Female gamete; contains a haploid # of chromosomes
a)
Daughter cell
b)
Son cell
c)
Egg cell
d)
Sperm cell
4.
Male gamete; contains a haploid # of chromosomes
a)
Daughter cell
b)
Son cell
c)
Egg cell
d)
Sperm cell
5.
Cell which after division is identical to the original
a)
Daughter cell
b)
Son cell
c)
Egg cell
d)
Sperm cell
6.
Chromosome pairs 1-22 which code for many human traits are called:
a)
autosomes
b)
sex chromosome
c)
haploid
d)
centromeres
7.
During cell division, the DNA in a eukaryotic cell is tightly packed into structures called:
a)
chromosomes
b)
centromeres
c)
haploids
d)
histones
8.
DNA is replicated during a phase of the cell cycle called:
a)
M phase
b)
S phase
c)
G1 phase
d)
G2phase
9.
Between cell divisions, the DNA in a eukaryotic cell is uncoiled and spread out; in this form it is called:
a)
chromatid
b)
chromatin
c)
chromosome
d)
centromere
10.
Histones are proteins that:
a)
are found only in prokaryotic cells
b)
aid in controlling the activity of regions of mRNA
c)
aid in the packing of DNA in eukaryotic cells
d)
All of the above
11.
What controls cell division in eukaryote cells?
a)
proteins regulate the progress of cell division at certain checkpoints
b)
tRNA codes for amino acids to check the process
c)
nearby cells check to make sure the cell doesn’t divide too much
d)
none of these above
12.
Mitosis is a type of:
a)
sexual reproduction
b)
asexual reproduction
c)
transsexual reproduction
d)
none of these
13.
A pictomicrograph (photograph) of the chromosomes, arranged in pairs, from a dividing cell is a called a:
a)
karyotype
b)
homologous
c)
amniocentesis
d)
DNA
14.
Chromosomes that have the same size and shape and carry genes for the same trait are called:
a)
diploid
b)
haploid
c)
homogeneous
d)
homologous
15.
The division of the cytoplasm of a eukaryotic cell is called:
a)
mitosis
b)
binary fission
c)
cytokinesis
d)
cytoplasmic streaming
16.
Animal cells divide their cytoplasm by forming a:
a)
spindle fiber
b)
centriole
c)
cleavage furrow
d)
cell plate
17.
If your cat has a diploid number of chromosomes totaling 28; what would the haploid number of chromosomes be?
a)
28.0
b)
14.0
c)
56.0
d)
10.0
18.
Meiosis only occurs in:
a)
the specialized cell of the sex organs
b)
allium root tip cells
c)
skin cells
d)
both b and c
19.
Meiosis I differs from Meiosis II because:
a)
in Meiosis I the chromatids are pulled apart
b)
in Meiosis II the homologous chromosomes are pulled apart
c)
in Meiosis I the homologous chromosomes are pulled apart
d)
they are the same process
20.
The 23rd pair of chromosomes determines the gender or sex of an individual. If the individual was a female, the chromosomes on pair 23 would be:
a)
XX
b)
YY
c)
XY
d)
XXY
21.
The diagram on the right shows a cellular process that occurs in organisms. This process is known as:
a)
meiosis.
b)
mitosis.
c)
endocytosis.
d)
phagocytosis.
22.
Which of the following statements correctly describes meiosis?
a)
Cells divide only once during meiosis.
b)
Meiosis does NOT occur in reproductive cells.
c)
The cells produced at the end of meiosis are genetically identical to the parent cell.
d)
The cells produced at the end of meiosis contain half the number of chromosomes as the parent cell.
23.
Which of the following best describes meiosis?
a)
It is carried out in all tissues that require cell replacement.
b)
It occurs only in cells in the reproductive structures of the organism.
c)
It happens in all tissues except the brain and spinal cord.
d)
It is the first stage of mitosis
24.
When cells contain only one set of chromosomes or half the normal number of chromosomes they are said to be:
a)
diploid
b)
haploid
c)
triploid
d)
autosomes
25.
During Anaphase I of meiosis chromosomes separate __________ to allow for different combinations of chromosomes (genetic recombination) in gametes.
a)
randomly
b)
predictably
c)
by design
d)
identically
26.
Which of the following sequences represents chromosome number during fertilization?
a)
n + n à 2n
b)
2nàn + n
c)
n à n
d)
2n à 2n
27.
________ is responsible for the shuffling/mixing of chromosomes during meiosis, causing new combinations of genetic material to appear in gametes.
a)
mitosis
b)
binary fission
c)
asexual reproduction
d)
genetic recombination
28.
In oogenesis (egg production), a diploid reproductive cell divides meiotically to produce:
a)
one diploid gamete
b)
one haploid gamete and 3 polar bodies
c)
four diploid gametes
d)
four haploid gametes
29.
The diagram above shows homologous chromosomes during prophase I of meiosis. Which of the following correctly describes the process being illustrated?
a)
mutation in which the DNA content of the gene is altered
b)
segregation of sister chromatids
c)
condensation and segregation of alleles
d)
crossing-over in which genes are exchanged
30.
Which of the following is the best explanation for why the chromosome number is an even number in each of these organisms?
a)
Many other organisms have an odd number of chromosomes.
b)
The diploid chromosome number is always even so that when mitosis occurs each new cell gets the same number of chromosomes.
c)
The diploid chromosome number represents pairs of chromosomes, one from each parent, so it is always an even number.
d)
Chromosomes double every time the cell divides, so after the first division, the number is always even.
31.
It is more beneficial to reproduce ______ because it creates genetic(ly) _____ within a species; helping the chance of survivability.
a)
asexually, identical cells
b)
sexually, identical cells
c)
asexually, variation
d)
sexually, variation
32.
The uncontrolled growth or division of cells is called
a)
meiosis
b)
cancer
c)
mitosis
d)
all of these
33.
Any substance that can induce or promote cancer, like UV rays from the sun, is called a
a)
mutagen
b)
histones
c)
carcinogen
d)
none of these
34.
When the cells of a cancer tumor break off the tumor and invade and destroy healthy tissues elsewhere in the body, this tumor is described as:
a)
malignant
b)
benign
c)
normal
d)
histone
35.
Tumors in which the cells remain within a mass and pose no threat to life unless they are allowed to grow until they suppress vital organs are called:
a)
malignant
b)
benign
c)
metastatic
d)
normal
36.
The nuclear membrane and nucleolus reappear and the cell has two nuclei. Cytokinesis occurs after this phase.
a)
metaphase
b)
telophase
c)
prophase
d)
anaphase
37.
The chromatids are pulled apart and migrate to the opposite poles of the cell.
a)
metaphase
b)
interphase
c)
telophase
d)
anaphase
38.
DNA is in a fine threadlike network called chromatin. The cell grows and copies its DNA.
a)
metaphase
b)
interphase
c)
telophase
d)
anaphase
39.
The chromosomes meet in the middle.
a)
metaphase
b)
interphase
c)
telophase
d)
prophase
40.
The chromatin thickens up and chromosomes are formed.
a)
interphase
b)
telophase
c)
prophase
d)
anaphase
41.
Which term best describes letter A
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
42.
Which term best describes letter B
a)
interphase
b)
metaphase
c)
anaphase
d)
telophase
43.
Which term best describes letter C
a)
interphase
b)
metaphase
c)
anaphase
d)
telophase
44.
Which term best describes letter D
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
45.
Which term best describes letter E
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
46.
Which term best describes letter AB
a)
chromosome
b)
chromatid
c)
chromatin
d)
centrosome
47.
Which term best describes letter AC
a)
chromosome
b)
chromatid
c)
chromatin
d)
centrosome
48.
Which term best describes letter AC
a)
chromosome
b)
chromatid
c)
chromatin
d)
centrosome
49.
Which term best describes letter BC
a)
cell plate
b)
cleavage furrow
c)
spindle fibers
d)
centrosome
50.
Which term best describes letter AE
a)
cell plate
b)
cleavage furrow
c)
spindle fibers
d)
centrosome
100 %
