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Chapter 6, Section 2 A
Test Description: Genes and Gene Technology: How DNA Works
Instructions: Answer all questions to get your test result.
1) Most genetic disorders, such as sickle cell anemia, are due to a ___.
A
dominant gene
B
recessive gene
C
ribosome
D
pedigree
2) Genetic engineering is currently used to ___.
A
manufacture proteins
B
All of the answers
C
repair damaged genes
D
genetically alter plants
3) Which of the following could cause sickle cell anemia?
A
air pollution
B
a bacterium
C
a change in the order of bases in a person's DNA
D
a virus
4) Which of the following is NOT a step in making a protein?
A
copies of DNA are taken to the cytoplasm
B
amino acids are joined together at the ribosome to make a protein
C
transfer molecules deliver amino acids to the nucleus
D
a copy of the DNA is fed through the ribosome
5) The human body contains about 50,000 different kinds of ___, which are made of amino acids.
A
genes
B
bases
C
proteins
D
traits
6) The factory through which the protein assembly line is fed is the ___.
A
nucleus
B
cell membrane
C
cell wall
D
ribosome
7) In order to make a protein, extra amino acids must be brought from the ___ to join with the complementary copy of the DNA strand.
A
cytoplasm
B
ribosome
C
nucleus
D
cell membrane
8) An original base sequence of DNA, AAACCCGGG, changes to AAACACGGG. This mutation is known as a ___.
A
substitution
B
deletion
C
omission
D
insertion
9) An original base sequence of DNA, AAACCCGGG, changes to AAACCGGG. This mutation is known as a ___.
A
insertion
B
substitution
C
deletion
D
omission
10) A mutation in DNA could result in ___.
A
no change at all
B
death
C
all of the answers
D
a genetic disorder
*select an answer for all questions
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