WorksheetsCell division and Sexual Reproduction
Total questions: 18
Worksheet time: 2hrs 30mins
Name
Class
Date
1.
Which of the following sequences represents the correct order of events in the formation of a human fetus?
a)
Zygote → Blastocyst → Embryo → Fertilization
b)
Fertilization → Zygote → Blastocyst → Embryo
c)
Blastocyst → Embryo → Differentiation → Zygote
d)
Fertilization → Growth → Differentiation → Zygote
2.
The diagram below shows a fetus implanted in a female uterus
Fertilization of the egg most likely occurred in which of the following structures?
Fertilization of the egg most likely occurred in which of the following structures?
a)
A
b)
F
c)
C
d)
D
3.
The drinking of alcoholic beverages by a pregnant woman is harmful to the development of her fetus. This is most damaging early in the first trimesters of pregnancy because during this time
a)
the lungs of the fetus become functional
b)
alcohol can easily enter the mouth of the fetus
c)
many of the essential organs of the fetus are forming.
d)
the fetus cannot excrete wastes.
4.
Which of the following describes fertilization?
a)
Cell differentiation to form a blastula
b)
Formation of germ layers in a deuterostome
c)
A sperm joining an egg to form a zygote
d)
Sperm and egg production
5.
Abnormalities present in the cells that line the uterus may prevent the production of offspring by directly interfering with which process?
a)
The development of the embryo.
b)
The differentiation of gametes into zygotes.
c)
The secretion of estrogen by the ovary.
d)
The production and release of egg cells.
6.
Sperm are created through meiosis in an area of the testes called the seminiferous tubules. Through which structure do the sperm travel to exit the testes?
a)
vas deferens
b)
seminiferous tubules
c)
scrotum
d)
epididymis
7.
Which of the following is true of a zygote?
a)
It forms into a blastocyst
b)
It is an unfertilized egg
c)
It produces haploid male gametophytes
d)
It is made up of only one cell
8.
What is the human embryo called after the eighth week of development?
a)
a zygote
b)
an infant
c)
a fetus
d)
a morula
9.
Which of the following events occurs during the first trimester?
a)
heart beat begins
b)
lungs fully developed
c)
bones become solid
d)
fetus moves, kicks and swallows
10.
Below is a diagram of the male reproductive system.
Which structure is represented by the letter D?
Which structure is represented by the letter D?
a)
scrotum
b)
testes
c)
prostate gland
d)
epididymus
11.
A fertilized egg undergoes several stages before it is successfully implanted. The diagram below shows these stages as the fertilized egg travels through the female reproductive system.
In which of the following structures of the female human reproductive system is the blastocyst implanted during normal human development?
In which of the following structures of the female human reproductive system is the blastocyst implanted during normal human development?
a)
ovary
b)
uterus
c)
vagina
d)
amniotic sac
12.
The diagram below shows a cellular process that occurs in organisms.
What is the name of this process?
What is the name of this process?
a)
meiosis
b)
mitosis
c)
endocytosis
d)
phagocytosis
13.
The diagram below shows homologous chromosomes during prophase I of meiosis
Which of the following correctly describes the process being illustrated?
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 chromatid
c)
condensation and segregation of alleles
d)
crossing-over in which alleles are exchanged
14.
The diagram below shows two strawberry plants
Plant 2 is produced asexually from Plant 1. If the leaf cells of Plant 1 have 56 chromosomes, how many chromosomes will be found in the leaf cells of Plant 2?
Plant 2 is produced asexually from Plant 1. If the leaf cells of Plant 1 have 56 chromosomes, how many chromosomes will be found in the leaf cells of Plant 2?
a)
14
b)
28
c)
56
d)
112
15.
A scientist wants to change the DNA of a sexually reproducing organism and have the new DNA present in every cell of the organism. In order to do this after fertilization, she would change the DNA in which of the following?
a)
zygote
b)
placenta
c)
testes of the father
d)
ovaries of the mother
16.
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 organisms.
c)
It happens in all tissues except the brain and spinal cord.
d)
It is the first stage of mitosis
17.
Which type of reproduction leads to increased genetic variation on a population?
a)
Parthenogenesis
b)
Asexual reproduction
c)
Sexual reproduction
d)
Vegetative reproduction
18.
Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes and event that results from mitosis but NOT meiosis?
a)
two stages of cell division
b)
replication of cellular genetic material
c)
daughter cells that are identical to the parent cell
d)
four daughter cells that are produced from each parent cell
100 %
