Download Name: Aim 33: Cloning Questions Date

Name: ________________
Aim 33: Cloning Questions
Date: _____________
1. Two methods of reproduction are represented in the diagram below.
How does the DNA in the offspring produced by these methods compare to the DNA in the original organism?
1) The offspring contain half the original number of chromosomes in each method.
2) The DNA in the offspring is genetically identical to that of the original organism in both methods.
3) The offspring produced by method A contain twice the original number of genes, while those produced by method B
contain half the original number of genes.
4) The number of DNA bases is less than that of the original organism in method A,but more than the original number in
method B.
2. The diagram below represents the cloning of a carrot plant.
Compared to each cell of the original carrot plant, each cell of the
new plant will have
1) the same number of chromosomes and the same types of
genes
2) the same number of chromosomes, but different types of
genes
3) half the number of chromosomes and the same types of
genes
4) half the number of chromosomes, but different types of
genes
3. The cloning of cells involves the process of
1) meiotic cell division
3) mitotic cell division
2) fusion of gametes
4) formation of spores
4. Scientists have successfully cloned animals, including large
mammals such as sheep. Which statement provides the most
likely reason that a human has not yet been cloned?
1) Humans have DNA that is structurally very different from
other mammals.
2) Cloning can only he performed on animals that normally
reproduce asexually.
3) Human genes are made of too many different types of
simple sugars.
4) Some people consider human genetic experiments
unethical.
5. Which situation is least likely to result in new inherited
characteristics?
1)
2)
3)
4)
altering genetic information
changes in the structure of genes
producing new individuals by means of cloning
changes in the structure of individual chromosomes
6. Steps in a reproductive process used to produce a sheep with
certain traits are listed below.
Step 1 — The nucleus was removed from an unfertilized egg
taken from sheep A.
Step 2 — The nucleus of a body cell taken from sheep B was then
inserted into this unfertilized egg from sheep A.
Step 3 — The resulting cell was then implanted into the uterus of
sheep C.
Step 4 — Sheep C gave birth to sheep D.
Which sheep would be most genetically similar to sheep D?
1) sheep A, only
3) both sheep A and B
2) sheep B, only
4) both sheep A and C
7. Which phrase does not describe cells cloned from a carrot?
1)
2)
3)
4)
they are genetically identical
they are produced sexually
they have the same DNA codes
they have identical chromosomes
8. From a single monkey, an animal breeder claims that he has
successfully cloned two monkeys. He displays the two monkeys,
a male and a female, to the public. The claim of the breeder
should be rejected because the monkeys
1)
2)
3)
4)
are twins
have the same parents
are of two different sexes
developed from more than one sperm cell
9. A small amount of DNA was taken from a fossil of a mammoth
found frozen in glacial ice. Genetic technology can be used to
produce a large quantity of identical DNA from this mammoth's
DNA. In this technology, the original DNA sample is used to
1)
2)
3)
4)
stimulate differentiation in other mammoth cells
provide fragments to replace certain human body chemicals
act as a template for repeated replication
trigger mitosis to obtain new base sequences
10. A technique used to produce new plants is represented in the
diagram below.
Which statement is best supported by the information in the
diagram?
1) The one leaf cell removed formed a zygote that developed
into a new plant by mitotic cell division.
2) This procedure is used to produce new tomato plants
that are clones of the original tomato plant.
3) The cell taken from the leaf produced eight cells, each
having one-half of the genetic information of the original
leaf cell.
4) The new tomato plant will not be able to reproduce
sexually because it was produced by mitotic cell division.
11. “Dolly” was a sheep developed from an egg cell of her mother
that had its nucleus replaced by a nucleus from a body cell of
her mother. As a result of this technique, Dolly was
1)
2)
3)
4)
no longer able to reproduce
genetically identical to her mother
able to have a longer lifespan
unable to mate
Answer Key
cloning notes
1.
2
2.
1
3.
3
4.
4
5.
3
6.
2
7.
2
8.
3
9.
3
10.
2
11.
2