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Science Benchmark 2 Review II
Test Description: Use these games to review for your benchmark.
Instructions: Answer all questions to get your test result.
1) The allele that seems to disappear
A
Punnett Square
B
recessive allele
C
dominant allele
D
allele
2) The different forms a gene has for a trait
A
Punnett Square
B
recessive allele
C
allele
D
dominant allele
3) The allele that covers up another allele
A
Punnett Square
B
recessive allele
C
dominant allele
D
allele
4) If the egg cell of a cat has 18 chromosomes, how many chromosomes will there be in the zygote after fertilization?
A
18
B
9
C
36
D
3
5) Mitosis is to _____; as Meiosis is to ______.
A
sperm cells ; egg cells
B
body cells ; sex cells
C
half cells ; full cells
D
sex cells ; body cells
6) Mitosis is to _____; as Meiosis is to ______.
A
egg ; sperm
B
diploid cells ; haploid cells
C
haploid cells; diploid cells
D
sperm ; egg
7) Erik wants to determine what type of reproduction a particular organism undergoes. He finds out that all of the organism’s offspring look identical to the original organism. He determines that this organism reproduces ___.
A
asexually
B
rarely
C
often
D
sexually
8) Asexual reproduction results in new bacteria whose DNA is ____.
A
half- identical to both parents
B
none of the above
C
different from the parent
D
identical to that of the parent
9) Haploid numbers of chromosomes are usually found in the _____ of an organism.
A
body cell
B
zygotes
C
tissues
D
sex cells
10) Each human body cell has ______ total chromosomes.
A
46
B
18
C
13
D
23
11) Watson and ________ made the first accurate model of DNA in 1953.
A
Crick
B
Cricket
C
Burstein
D
Best
12) In a segment of DNA there are 28 bases of adenine. How many bases of thymine would there be in the same DNA model?
A
14
B
28
C
65
D
92
13) Sex cells from female reproductive organs.
A
zygote
B
meiosis
C
sperm
D
egg
14) Sex cells from the male reproductive organ.
A
meiosis
B
egg
C
zygote
D
sperm
15) The first cell that is formed when the sperm and egg unite during fertilization.
A
meiosis
B
egg
C
sperm
D
zygote
*select an answer for all questions
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