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Chapter 6, Section 2 B
Test Description: Genes and Gene Technology: How DNA Works
Instructions: Answer all questions to get your test result.
1) ___ allows scientists to transfer genes for one organism to another
A
DNA fingerprinting
B
none of the answers
C
Genetic engineering
D
Selective breeding
2) ___ is a tool for tracing a genetic trait through generations of a family.
A
A Punnett square
B
A family tree
C
none of the answers
D
A pedigree
3) Examples of chemical ___ includes asbestos and chemicals found in cigarette smoke.
A
mutagens
B
mutations
C
ribosomes
D
none of the anwers
4) If a mutation occurs in the DNA of ___ cells, it can be passed from one generation to the next.
A
brain
B
muscle
C
heart
D
sex
5) If a change occurs in a base sequence of a DNA, it might cause a different ___ to be substituted in a protein.
A
ribosome
B
nucleic acid
C
enzyme
D
amino acid
6) Sickle cell anemia is a disease that affects red blood cells. This is the result of a mutation called a ___.
A
deletion
B
omission
C
substitution
D
insertion
7) One effect of the ___ that is responsible for sickle cell disease is that sickled cells are not as good as normal cells at carrying oxygen through the body.
A
mutagen
B
enzyme
C
mutation
D
protein
8) A disease that occurs when a child inherits a defective gene from parents who do not suffer from the disease in a ___ disorder.
A
intensive
B
recessive
C
obsessive
D
regressive
9) In a pedigree, a solid square or circle indicates that the person ___.
A
does not have a certain trait
B
has the disease
C
has a certain trait
D
is a carrier of a certain trait
10) In a pedigree, a half filled square or circle indicates that the person ___.
A
is a carrier of a certain trait
B
has a certain trait
C
doess not have certain trait
D
has the disease
*select an answer for all questions
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