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