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Genetics
Test Description: Genetics review
Instructions: Answer all questions to get your test result.
1) chromosome is to nucleus as DNA is to
A
cell membrane
B
chloroplast
C
cytoplasm
D
gene
2) Each body cell ofa goldfish contains 94 chromosomes. How many chromosomes are contained in a goldfish sex cell?
A
94
B
47
C
188
D
23
3) In sexual reproduction, what fraction of genes does each parent contribute to the offspring?
A
1/2
B
1/4
C
1/3
D
3/4
4) The male sex cell is the
A
testes
B
sperm
C
ovary
D
egg
5) The vast variety of different traits found in humans results from
A
exercise and conditioning
B
sexual reproduction and mutations
C
birth defects and recessive genes
D
intensive training and education
6) Which organism consists of one cell?
A
mushroom
B
earthworm
C
amoeba
D
pine tree
7) Which condition is the result of abnormal cell division?
A
extinction
B
cancer
C
infection
D
pregnancy
8) Which process is responsible for growth and repair
A
cancer cells
B
mitosis
C
sexual reproduction
D
asexual reproduction
9) Which process gives rise to a variety of traits within a species?
A
cellular respiration
B
internal regulation
C
sexual reproduction
D
dynamic equilibrium
10) If a species is not longer able to reproduce, it will
A
become immune to disease
B
become extinct
C
increase its population
D
adapt to its environment
*select an answer for all questions
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