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WorksheetsReproduction (the Living Environment)
Total questions: 50
Worksheet time: 1hrs 19mins
Name
Class
Date
1.
The are a number of different strategies various organisms use in order to reproduce asexually (for example, budding, binary fission, sporulation, etc). What they all have in common is:
a)
Offspring are from one parent, and are clones.
b)
Offspring produced from one parent, and are genetically unique.
c)
Offspring are produced from 2 parents, and are clones.
d)
Offspring are produced from 2 parents, and are genetically unique.
2.
An egg cell of a certain flowering plant has 32 chromosomes. Which other cell from this species would also have 32 chromosomes.
a)
A zygote.
b)
A sperm cell.
c)
A cell from it's leaf.
d)
A cell from it's roots.
3.
Which 2 cells have the same chromosome number, if taken from the same species?
a)
An egg, and a liver cell
b)
A sperm, and a zygote
c)
A zygote, and a brain cell
d)
A zygote, and an ovum.
4.
Which is NOT true about the placenta?
a)
Nutrients, gases, and wastes diffuse in 2 directions within it.
b)
It is formed from a combination of fetus and uterus cells.
c)
Found only in mammals
d)
Maternal and fetal blood mix in this structure.
5.
Which hormone is associated with regulation of the menstrual cycle?
a)
Progesterone
b)
Estrogen
c)
Testosterone
d)
Insulin
6.
If cells are taken from a certain plant, divide by mitosis, and develop into a new plant, than which statement is true?
a)
It is a form of sexual reproduction.
b)
The new plant has 50% of it's DNA from each of 2 parents
c)
It is a form of asexual reproduction.
d)
Meiosis occurs between mitosis and full development.
7.
Where is a likely location for receptors for the hormone testosterone?
a)
The cells of the female reproductive sytsem.
b)
the cells of the male reproductive system.
c)
liver cells.
d)
Pancreas cells.
8.
During the development of an embryo, at a certain stage, a structure called a gastrula forms, which has 3 tissue layers (and thus, 3 cell types). What is the significance of this stage.
a)
It is where differentiation begins
b)
mitosis speeds up during this stage.
c)
Meiosis occurs for the first time at this point.
d)
It is when fertilization occurs.
9.
In which structure does fertilization usually take place?
a)
the vagina
b)
The testes
c)
Uterus
d)
Fallopian Tubes (aka- the oviduct)
10.
In which choice are the four events in the correct order?
a)
fertilization, cleavage, differentiation, organ development
b)
cleavage, fertilization, differentiation, organ development
c)
differentiation, fertilization, cleavage, organ development
d)
fertilization, organ development, differentiation, cleavage.
11.
What is the function of sperm?
a)
conveys a chemical message to resceptors of the repropductive system.
b)
to deliver a diploid number of chromosomes to the diploid egg
c)
provides necessary nutrients for the fetus
d)
transfer of genetic material
12.
Sheep were the first species of mammals to be cloned. Which statement about cloned sheep is correct?
a)
Many cells in cloned sheep have two identical nuclei, instead of a single nucleus.
b)
Two sheep cloned from the same parent cannot mate and have offspring.
c)
Cloned sheep cannot produce offspring if they are mated with noncloned sheep.
d)
Different kinds of body cells in a cloned sheep contain different DNA.
13.
Between which two letters does mitosis occur?
a)
C and D
b)
A and C
c)
B and C
d)
A and B
14.
Which is true about tortoise reproduction (pictured)?
a)
external fertilization, internal development of the embryo
b)
external fertilization, external development of embryo
c)
internal fertilization, internal development of the embryo
d)
internal fertilization, external development of embryo
15.
Which is true about fish reproduction?
a)
external fertilization, internal development of the embryo
b)
external fertilization, external development of embryo
c)
internal fertilization, internal development of the embryo
d)
internal fertilization, external development of the embryo
16.
Step C results in the production of
a)
gametes that could be involved in the formation of a zygote
b)
four cells that will recombine to form two offspring
c)
embryonic cells that could unite and develop into an organism
d)
four zygotes that will develop into embryos
17.
Between which two letters does differentiation occur?
a)
D and E
b)
B and C
c)
C and D
d)
A and B
18.
Which diagram correctly represents a step in the normal process of human reproduction?
a)
1
b)
2
c)
3
d)
4
19.
Which is true about all of the ova (egg cells) in an individual female?
a)
they have half the number of chromosomes as her body cells, and a different genetic sequesnce from one anaother
b)
They have half the number of chromosomes as her body cells, and the exact same genetic sequence as each other.
c)
They have the same number of chromosomes as her body cells, and a different genetic sequence than one another.
d)
They have the same number of chromosomes as her body cells, and the exact same genetic
20.
Which is true of offspring produced by meiosis and fertilization?
a)
Their cells contain half the amount of genetic material that their parents’ cells have.
b)
Their cells contain twice the genetic material of their parents’ cells.
c)
They have gene combinations identical to both parents.
d)
They have gene combinations different than either parent.
21.
A gene alteration in which of the following would lead to new inheritable traits?
a)
liver cells.
b)
gametes
c)
cell membranes
d)
antibodies
22.
Which is true about what human reproduction requires?
a)
Cloning!
b)
Gametes that undergo mitosis.
c)
Gametes with unpaired chromosomes
d)
External fertilization of sex cells.
23.
Which statement illustrates the fact that different genes are in operation in different parts of the same organism?
a)
Starting at the gastrula stage, different tissues (and eventually organs) develop from the previously undifferentiated embryo.
b)
An embryo increases in cell number rapidly during cleavage.
c)
There are various stages of mitosis, including anaphase and prophase.
d)
Sexually reproduced organisms inherit genetic material from two parents.
24.
The direct (immediate) result of fertilization is represented at:
a)
a
b)
b
c)
c
d)
d
25.
Structure A usually produces:
a)
sperm and eggs
b)
testosterone and eggs
c)
estrogen, progesterone, and eggs
d)
estrogen, progesterone, and testosterone
26.
Which structure produces the male hormone responsible for characteristics such as muscle development, deep voice, and gamete production?
a)
a
b)
e
c)
b
d)
d
27.
The placenta forms from the combination of fetal tissue and tissue from structure:
a)
a
b)
b
c)
c
d)
d
28.
What change would occur immediately if both structures labeled B were damaged or blocked?
a)
Structure A would decrease urine production.
b)
Gametes would no longer be transported to female.
c)
The blood supply to structure E would decrease.
d)
Structure A would decrease in size.
29.
This image shows an event that occurs to replicated chromosomes during meiosis. Which of the following statements is NOT true concerning this process?
a)
It increases the number of possible gene combination
b)
It is called "crossing over"
c)
It also occurs during mitosis
d)
It contributes to genetic diversity in sexually organisms
30.
Testosterone directly affects the
a)
formation of a zygote
b)
production of sperm cells
c)
changes within an ovary
d)
development of a placenta
31.
The reproductive system of a male mammal provides:
a)
the ovaries for gamete production
b)
a means for the delivery of gametes
c)
materials through the placenta
d)
support for the internal development of the embryo
32.
Which structure is correctly paired with its function?
a)
uterus — produces estrogen
b)
placenta — storage of released eggs
c)
testis — development of sperm
d)
ovary — provides milk for newborns
33.
The major function of the system is to
a)
provide immunity essential for the survival of each individual in a population
b)
provide cells that are necessary for the survival of the species
c)
produce chemical messages that are necessary for nerve cell development
d)
control the passage of nutrients into and out of a developing fetus
34.
Which is true?
a)
Fertilization usually happens in structure C.
b)
Development of an embryo usually happens in structure C
c)
Fertilization usually occurs in structure D.
d)
Structure D produces hormones necessary for the development of the female reproductive system.
35.
In which structure could a second structure develop which controls the passage of nutrients into and out of a developing fetus
a)
g
b)
e
c)
b
d)
d
36.
In which structure do gametes usually unite to produce a zygote?
a)
a
b)
c
c)
g
d)
f
37.
In which structure would both mitosis and differentiation of an embryo occur?
a)
a
b)
b
c)
c
d)
d
38.
a)
1
b)
2
c)
3
d)
4
39.
The human female reproductive system is represented in the diagram below. Production of gametes and support of the fetus normally occur in structures:
a)
1 and 2
b)
3 and 5
c)
2 and 4
d)
4 and 5
40.
Essential materials needed for development are transported to a human fetus through the:
a)
reproductive hormones
b)
egg cell
c)
ovaries
d)
placenta
41.
What normally happens immediately after fertilization in sexual reproduction?
a)
specialization of cells to form a fetus from an egg
b)
production of daughter cells having twice the number of chromosomes as the parent cell
c)
production of daughter cells having half the number of chromosomes as the parent cell
d)
division of cells resulting in the development of an embryo from a zygote
42.
Compared to sexual reproduction, what is an advantage for asexual reproduction?
a)
It leads to greater genetic diversity
b)
It allows for greater ability of the parent organism to care for it's offspring.
c)
Asexual reproduction preserves the life of the parent organism, unlike sexual reproduction.
d)
It is quicker.
43.
When an organism reproduces asexually, it usually has:
a)
two parents, and the same chromosome number as each parent
b)
two parents, and twice as much DNA as either parent
c)
only one parent, and the same chromosome number as the parent
d)
only one parent, and half as much DNA as the parent
44.
Some species of yeast bud, while others undergo binary fission, as seen in this image. Which statement is true concerning these 2 strategies of reproduction?
a)
Between the 2, only fission produces organisms that are genetic clones of the parent.
b)
Between the 2, only budding is a form of sexual reproduction.
c)
Between the 2, only fission splits the cytoplasm equally between the two offspring.
d)
Between the 2, budding has greater potential for genetic diversity.
45.
Which statement concerning sexual reproduction is correct?
a)
The offspring are identical to each other.
b)
It is necessary in order for the individual to survive.
c)
The offspring are identical to the parent.
d)
It is not necessary in order for the individual to survive.
46.
When a paramecium, a single-celled organism, is living under stressful conditions, it sometimes switches from asexual to sexual reproduction. The main advantage when this switch occurs is that the paramecium is most likely to: (1) (2) (3) (4)
a)
produce clones of itself
b)
avoid having to find a mate
c)
increase variation among its offspring
d)
produce fewer offspring.
47.
Which set of terms match the numbered structures above?
a)
1=sperm, 2=embryo, 3=zygote, 4= egg.
b)
1=sperm, 2=egg, 3=zygote, 4=embryo
c)
1=sperm, 2=egg, 3=embryo, 4=zygote
d)
1=sperm, 2=zygote, 3=egg, 4=embryo
48.
In an embryo, the formation of many types of tissues and organs occurs as a result of the process of:
a)
fertilization
b)
cloning
c)
differentiation
d)
asexual reproduction
49.
Which is a reproductive gland?
a)
1
b)
2
c)
3
d)
4
50.
Which set of terms matches the lettered processes above?
a)
a=fertilization, b=meiosis
b)
a=fertilization, b=mitosis
c)
a=meiosis, b=differentiation
d)
a=mitosis, b=meiosis
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