Chapter 8 Flashcards

1
Q

A lethal mutation is one which

A

causes the death of the organism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What type of mutation does not affect the offspring?

A

somatic mutation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Down syndrome is usually caused by

A

one too many chromosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Inbreeding is to breeds as crossbreeding is to

A

hybrids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

To develop a new breed of dog, a man selects and mates dogs from different breeds that have the characteristics he wants in the new breed. This breeding is an example of

A

crossbreeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
Which of the following does not belong with the other three?
embryo splitting
identical twins
asexual reproduction
hybrids
A

hybrids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Splitting frog or cattle embryos is a step in

A

cloning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Fraternal twins

A

have the same parents but not the same genes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Genetic engineering

A

could be used for good or evil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The Human Genome Project is a scientific effort to

A

map all human genes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

any change in an organism’s genetic material

A

mutation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

a mutation that causes the death of the organism

A

lethal mutation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

a mutation that changes the sequence of bases in a gene

A

gene mutation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

has the gene but not the disease

A

carrier

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

a mutation that occurs in a gamete or gamete-forming cell

A

germ mutation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

a mutation in a cell that does not produce gametes

A

somatic mutation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

a change involving the number of chromosomes in a cell or the arrangement of genes on a chromosome

A

chromosomal change

18
Q

having two sets of chromosomes

19
Q

characteristic referring to the number of sets of chromosomes in a cell

20
Q

twins that develop from a single zygote

A

identical twins

21
Q

Mutations occurring in cells that do not produce gametes are called ____________ mutations.

22
Q

An Old Testament patriarch who practiced selective breeding techniques to increase his wages was ________

23
Q

Cloning is a form of __________ reproduction.

24
Q

caused by a mutation that affects pigments

25
the choosing of organisms with desirable traits for breeding
selective breeding
26
a group of organisms that are purebred for a desired characteristic
breed
27
the mating of an organism with close relative
inbreeding
28
another name for hybridization
crossbreeding
29
the condition in which an offspring is stronger than its parents
hybrid vigor
30
the use of special techniques to control the genetic makeup of an organism
genetic engineering
31
a group of genetically identical organisms produced by asexual reproduction
clones
32
the result of a pregnancy in which two sperm unite with two different eggs and form two genetically unique organisms
fraternal twins
33
a complete set of an organism's genes
genome
34
True or False | Mutations can happen at any time
True
35
True or False | Mutations are seldom considered harmful because some cause so little damage as to be unnoticeable.
False
36
True or False | Sometimes mutations do not appear to affect an organism at all
True
37
True or False | Some people are carriers of dominant disorders but do not have the disorder themselves.
False
38
True or False | Most livestock breeders are self-trained and do not need a college education
False
39
True or False | Man has used genetic principles for thousands of years without understanding how they work
True
40
True or False | Inbreeding attempts to preserve the special characteristics of a breed.
True