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Life Unit Test
Test Description: Life Unit Test
Instructions: Answer all questions to get your test result.
1) Each human cell contains the genes for ________ traits.
A
thousands
B
one
C
46
D
two
2) A mutation in your DNA can lead to ____________________________.
A
strep throat
B
cold
C
cancer
D
a paper cut
3) If an organism is pure dominant, their genotype would be _______________.
A
Bb
B
bb
C
BB
D
Bg
4) If an organism is hybrid, their genotype would be _______________.
A
BH
B
BB
C
bb
D
Bb
5) Variations of a gene are called _________________________.
A
plasmids
B
genes
C
alleles
D
mutations
6) You can be sure of a person's genotype if their phenotype is ______________
A
recessive
B
dominant
C
brown hair
D
hybrid
7) Each of your cells contains the instructions for ________________ genes.
A
46
B
thousands of
C
2
D
23
8) Which of the following is an example of a phenotype?
A
BB
B
bb
C
red hair
D
Tt
9) Plants have the ability to make their own food because they contain this organelle.
A
cell membrane
B
chloroplast
C
cytoplasm
D
cell wall
10) In a DNA molecule the bond that holds the nitrogen bases together is called a _______________
A
nitrogen bond
B
water bond
C
oxygen bond.
D
hydrogen bond
*select an answer for all questions
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