Biology Test Questions

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Biology Test Questions

Question 1 (10 points)
Chromatids are
1.
attached at the centriole.
2.
a pair of chromosomes, one from the mother and one from the father.
3.
attached at their centromeres.
4.
identical until crossing over occurs.
100.0%
5.
both 3 and 4 are correct
Score: 10.0 / 10.0
Question 2 (10 points)
Different, or alternative, forms of the same gene are called
1.
genetomorphs.
100.0%
2.
alleles.
3.
mutants.
4.
chromatids.
5.
homologous.
Score: 10.0 / 10.0
Question 3 (10 points)
If a diploid organism has a genome consisting of 4(four) chromosomes, it can produce ____different combinations of maternal
and paternal chromosomes in the offspring (disregarding crossing over).
1.
4
2.
8
3.
12
100.0%
4.
16
5.
32
Score: 10.0 / 10.0
Question 4 (10 points)
Asexual reproduction
1.
Is the common form of reproduction in higher organisms.
100.0%
2.
Requires only one parent.
3.
Produces a wide variety of offspring.
4.
Both 2 and 3
5.
1, 2 and 3
Score: 10.0 / 10.0
Question 5 (10 points)
During crossing over, ___undergo breakage and exchange segments
1.
Sister chromatids
2.
Non sister chromatids of a homologous pair
3.
Nonhomologous chromatids
0.0%
4.
X and Y chromosomes
Scor...

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