If a parent cell of a sexually-reproducing species has 28 chromosomes, the number of chromosomes in the zygote would be 14. 28. 56. 112. impossible to determine with the information given.
If a parent cell of a sexually-reproducing species has 28 chromosomes, the number of chromosomes in the zygote would be
14.
28.
56.
112.
impossible to determine with the information given.
A tetrad is composed of
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two chromosomes with two sister chromatids each. |
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two sister chromatids with separate centromeres. |
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four chromosomes with two sister chromatids each. |
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four sister chromatids are attached at a common centromere. |
QUESTION 3
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During crossing-over
genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.
genetic material is exchanged between non-sister chromatids, resulting in new combinations of alleles.
sister chromatids from each homologous chromosomes of a tetrad are exchanged, resulting in new combination of alleles.
one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles.
QUESTION 4
Crossing-over occurs during which of the following phases of meiosis?
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Metaphase I |
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Metaphase II |
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Prophase I |
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Prophase II |
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Anaphase I |
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Anaphase II |
QUESTION 5
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The main goal of meiosis I is to ______, while the main goal of meiosis II is to _______.
separate maternal chromatids; separate paternal chromatids
separate chromatids; separate homologous pairs
separate maternal from paternal chromosomes; separate sister chromatids
separate sister chromatids; separate maternal from paternal chromosomes
separate homologous pairs, separate sister chromatids
QUESTION 6
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Which of the following is NOT a function of meiosis?
cause an organism to grow
create genetic variability
reduce the chromosome number in gametes
keep chromosome number constant from one generation to the next
All of the above are functions of meiosis
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QUESTION 7
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If a parent cell of a sexually-reproducing species has 28 chromosomes, the number of chromosomes in the gamete would be
14.
28.
56.
112.
impossible to determine with the information given.
QUESTION 8
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During meiosis, the pairs of homologous chromosomes are divided in half to form haploid cells. This random separation of homologous chromosomes is called
Apoptosis
Nuclear Division
Tetrad formation
Independent Assortment
Fertilization
Somatic division
QUESTION 9
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If a parent cell has 30 chromosomes, at the end of telophase I there would be two cells, each with 15 chromosomes.
True
False
QUESTION 10
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The daughter cells produced during mitotic cell division in humans are
diploid
haploid
triploid
tetrads
QUESTION 11
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The developmental sequence that begins with a fertilized egg, proceeds to adulthood, and then repeats itself through reproduction.
karyotype
meiosis
alleles
life cycle
apoptosis
QUESTION 12
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Which of the following cells undergo meiosis?
sperm cells
egg cells
germ-line cells
Both A and B are correct
A, B and C are correct
QUESTION 13
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Meiosis results in a change in chromosome number indicated by:
2n to 2n
2n to n
N to 2n
N to n
QUESTION 14
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Meiosis is a type of cell division that produces:
Zygotes
Chromosomes
DNA
Gametes
QUESTION 15
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Which of the following is NOT true regarding meiosis and mitosis?
Meiosis results in four daughter cells.
The products of meiosis are genetically dissimilar to each other.
Mitosis occurs in all tissues.
Both meiosis and mitosis require two nuclear divisions.
Following mitosis, the daughter cells have the same number of chromosomes as the parent cell.
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QUESTION 16
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Which of the following statements is correct?
Meiosis involves 2 divisions and produces 4 non-identical daughter nuclei.
Meiosis involves 2 divisions and produces 4 identical daughter nuclei.
Meiosis involves 1 division and produces 2 non-identical daughter nuclei.
Meiosis involves 1 division and produces 2 identical daughter nuclei.
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