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Chapter 6, Section 1 A
Test Description: Gene and Gene Technology: What Do Genes Look Like.
Instructions: Answer all questions to get your test result.
1) The code for a given amino acid consists of ___ bases.
A
two
B
three
C
four
D
one
2) What material make up each nucleotide in a DNA molecule?
A
a sugar, a phosphate, and a base
B
a gene, an allele, and a trait
C
chromosomes and genes
D
an amino acid, a base, and a protein
3) The complementary strand to the DNA sequence TAGTCA would be
A
ATGAGT
B
GACAGT
C
GTAGAT
D
ATCAGT
4) Which of the following statements is FALSE?
A
Several genes may afftect a single trait
B
The environment has no influence on a person's traits
C
A single gene can affect more than one trait
D
A mutation can affect the traits of an organism
5) In a DNA molecule, which of the following bases pair together?
A
cytosine and thymine
B
thymine and adenine
C
thymine and guanine
D
adenine and cytosine
6) A gene is ___.
A
a portion of a strand of DNA
B
instructions on how to make a protein
C
a set of instructins for each trait
D
all of the answers
7) DNA ___.
A
cannot be repaired it it is mutated
B
all of the answers
C
has a structure like a twisted ladder
D
is made up of amino acids
8) In incomplete dominance, ___.
A
the environment controls the genes
B
each allele for a trait has its own degree of influence
C
genes for a trait are all recessive
D
a single gene controls many traits
9) Watson and Crick ___.
A
made models to determine DNA structure
B
discovered that genes were located on chromosomes
C
studied the amount of each base in DNA
D
took X-ray pictures of DNA
10) Chemist Rosalind Franklin was able to ___ using X-ray diffraction.
A
make a model of DNA
B
calculate the number of genes on DNA
C
create images of DNA molecules
D
splice DNA
*select an answer for all questions
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