Name: 
 

L.E. Reproduction & Development Review



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

The diagram below represents chromosomes in a zygote.
le_rep_dev_review_files/i0020000.jpg
Which diagrams best illustrate the daughter cells that result from normal mitotic cell division of this zygote?
A.
le_rep_dev_review_files/i0020001.jpg
C.
le_rep_dev_review_files/i0020002.jpg
B.
le_rep_dev_review_files/i0020003.jpg
D.
le_rep_dev_review_files/i0020004.jpg
 

2. 

The diagram below shows the human female reproductive system.
le_rep_dev_review_files/i0030000.jpg
The fetus normally develops within structure
A.
A
B.
B
C.
C
D.
D
 

3. 

Which statement does not correctly describe an adaptation of the human female reproductive system?
A.
It produces gametes in ovaries.
B.
It provides for external fertilization of an egg.
C.
It provides for internal development of the embryo.
D.
It removes excretions produced by the fetus.
 

4. 

Which event does not occur between stages 2 and 11 in the process represented in the diagram below?
le_rep_dev_review_files/i0050000.jpg
A.
a decrease in cell size
C.
the development of embryonic layers
B.
DNA replication
D.
fertilization
 

5. 

The diagram below can be used to illustrate a process directly involved in
le_rep_dev_review_files/i0060000.jpg
A.
tissue repair
C.
recombination
B.
meiosis
D.
sexual reproduction
 

6. 

Male reproductive cells from numerous lubber grasshoppers, lake trout, and field mice were examined and found to have flagella. A valid conclusion that can be made based on this observation is that
A.
only lubber grasshoppers, lake trout, and field mice produce reproductive cells with flagella
B.
all organisms produce male reproductive cells with flagella
C.
only male organisms produce reproductive cells with flagella
D.
all male lubber grasshoppers, lake trout, and field mice produce reproductive cells with flagella
 

7. 

When a pregnant woman ingests toxins such as alcohol and nicotine, the embryo is put at risk because these toxins can
A.
diffuse from the mother's blood into the embryo's blood within the placenta
B.
enter the embryo when it eats
C.
transfer to the embryo since the mother's blood normally mixes with the embryo's blood in the placenta
D.
enter the uterus through the mother's navel
 

8. 

Most cells in the body of a fruit fly contain eight chromosomes. In some cells, only four chromosomes are present, a condition which is a direct result of
A.
mitotic cell division
C.
embryonic differentiation
B.
meiotic cell division
D.
internal fertilization
 

9. 

The diagrams below represent some events in a cell undergoing normal meiotic cell division.
le_rep_dev_review_files/i0100000.jpg
Which diagram most likely represents a new cell resulting from meiotic cell division of the cell shown above?
A.
le_rep_dev_review_files/i0100001.jpg
B.
le_rep_dev_review_files/i0100002.jpg
C.
le_rep_dev_review_files/i0100003.jpg
D.
le_rep_dev_review_files/i0100004.jpg
 

10. 

A human zygote is produced from gametes that are usually identical in
A.
the expression of encoded information
C.
chromosome number
B.
the number of altered genes present
D.
cell size
 

11. 

Organisms that reproduce asexually do so by a form of cell division called
A.
meiosis
C.
gamete formation
B.
mitosis
D.
fertilization
 

12. 

If the sperm cells of a fish contain 12 chromosomes, how many chromosomes would be found in the liver cells of that fish?
A.
3
B.
6
C.
12
D.
24
 

13. 

The diagram below represents some stages of early embryonic development.
le_rep_dev_review_files/i0140000.jpg
Which process is represented by the arrows in the diagram?
A.
meiosis
B.
fertilization
C.
mitosis
D.
evolution
 

14. 

If an organism has a diploid number of 28, how many chromosomes would be found in one of its egg cells?
A.
14
B.
28
C.
7
D.
56
 

15. 

Which characteristic of sexual reproduction has specifically favored the survival of animals that live on land?
A.
fusion of gametes in the outside environment
B.
male gametes that may be carried by the wind
C.
fertilization within the body of the female
D.
female gametes that develop within ovaries
 

16. 

Normally, a complete set of chromosomes (2n) is passed on to each daughter cell as a result of
A.
mitotic cell division
C.
meiotic cell division
B.
reduction division
D.
nondisjunction
 

17. 

In humans, which cell is produced most directly by mitotic cell division?
A.
a zygote
B.
an egg cell
C.
a sperm cell
D.
a skin cell
 

18. 

Normal mitotic cell division results in each daughter cell having
A.
half the number of chromosomes as the parent cell
B.
twice the number of chromosomes as the parent cell
C.
the same number and kinds of chromosomes as the parent cell
D.
the same number but different kinds of chromosomes as the parent cell
 

19. 

The chromosome number of a cell produced by mitotic cell division is represented by 2n. If that cell had been produced by meiotic cell division, its chromosome number would be represented by
A.
n
B.
2n
C.
4n
D.
1/n
 
 
CLONING
   Today some plants are cloned to produce millions of offspring from a small piece of the original plant. Plant cloning is possible because the plant's diploid cells have the same genetic potential as the zygote that originally produced the plant and because of the action of the plant hormones auxin and cytokinin. These hormones are combined with other organic and inorganic substances in a growth medium that stimulates the production of new plants. The cloning process occurs in a sterile environment. The new plants produced are genetically identical to the original plant and to each other.
   The process and equipment for cloning are more expensive than for other forms of vegetative propagation. The advantage of cloning is that large numbers of desirable plants are produced in a short period of time. For example, a million plants of a new variety can be cloned in about six months.
 

20. 

For which reason is cloning used to reproduce plants?
A.
A large number of plants are produced in a short period of time.
B.
Plants with a large degree of genetic variability are produced.
C.
Plants are produced more cheaply than by other vegetative methods.
D.
Plants are produced by the sexual process, resulting in seeds.
 

21. 

If the diploid (2n) chromosome number of a cloned plant is 12, the chromosome number of the plant cell used to produce the cloned plant is
A.
12
B.
6
C.
3
D.
24
 

22. 

Which factor would tend to restrict genetic variations within a species?
A.
gene mutations
C.
recombination of genes
B.
asexual methods of reproduction
D.
sexual methods of reproduction
 

23. 

Asexual reproduction of diploid organisms normally results in a new organism that contain cells with
A.
the 2n number of chromosomes
B.
more chromosomes than are found in the cells of the parent
C.
the n number of chromosomes
D.
fewer chromosomes than are found in the cells of the parent
 

24. 

The members of a certain species of grass in a lawn are genetically identical. The best explanation for this observation is that the species most probably reproduces
A.
by an asexual method
B.
after pollination by the wind
C.
after pollination by a particular species of bee
D.
by identical sperm fertilizing the eggs
 

25. 

In most multicellular animals, meiotic cell division occurs in specialized organs known as
A.
gametes
B.
gonads
C.
kidneys
D.
cell organelles
 

26. 

Normally, each cell of a specific organism contains 64 chromosomes. However, some cells in that organism may each contain only 32 chromosomes as a result of
A.
crossing-over
C.
meiotic cell division
B.
mitotic cell division
D.
regeneration
 

Short Answer
 

27. 

A diagram of the human female reproductive system is shown below.
le_rep_dev_review_files/i0300000.jpg
Identify the structure labeled X and explain how it helps to provide nutrition for a developing fetus.
 
 
Use the diagram below to answer the questions that follow.
le_rep_dev_review_files/i0310000.jpg
 

28. 

In the diagram above, structures B and E provide nutrients and fluid for the gametes. Why are these substances necessary for fertilization?
 

29. 

In the diagram above, which letter indicates a structure that secretes a hormone that promotes maturation of gametes?
 

30. 

In the diagram above, which letter indicates a structure that is not involved in the production or delivery of gametes?
 



 
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