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Chapter 6, Section 1 B
Test Description: Gene and Gene Technology: What Do Genes Look Like?
Instructions: Answer all questions to get your test result.
1) Genes are composed of subunits known as ___.
A
ribosomes
B
mutations
C
sugars
D
nucleotides
2) Chargaff's rules state that the amount of ___ in DNA is always equal to the amount of guanine.
A
adenine
B
cytosine
C
thymine
D
none of the answers
3) Chargaff's rules are represented as ___.
A
A = G and T = C
B
A = C and T = G
C
A = T and G = C
D
T = C and G = A
4) In a DNA strand, the sides of the ladder are made of ___.
A
sugar molecules
B
nucleotide bases
C
alternating sugar and phosphate molecules
D
phosphate molecules
5) In a DNA strand, the rungs of the ladder are made of ___.
A
nucleotide bases
B
sugar molecules
C
alternating sugar and phosphate molecules
D
phosphate molecules
6) If a human being has about 30,000 genes and there are about 30,000 bases in each human gene, about how many bases are in all the genes?
A
900,000
B
90,000
C
9,000
D
900,000,000
7) What would the complementary strand of DNA be for the sequence bases ACCTAGTTG?
A
GTTCGACCA
B
ACCTAGTTG
C
TGGATCAAC
D
CAAGCTGGT
8) The white tiger having blue eyes is an example of ___.
A
incomplete dominance
B
one gene influencing many traits
C
many genes can influence one trait
D
environmental influences on your genes
9) A red snapdragon flower cossing with a white snapdragon flower and producing a pink snapdragon flower is an example of ___.
A
incomplete dominance
B
many genes can influence one trait
C
one gene influencing many traits
D
environmental influences on your genes
10) The color of your eyes is an example of ___.
A
how environment influences your genes
B
how many genes can influence one trait
C
one gene influencing many traits
D
complete dominance
*select an answer for all questions
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