Unit 6 Meiosis Practice Quiz

e
Asexually produced daughter cells are
a. Identical to each other.
b.identical to the mother cell.
c.different from the mother cell.
d. different from each other.
e. identical to each other and identical to the mother cell
b
Sexual reproduction
a. Leads to uniform characteristics in a population.
b. results in new combinations of genetic traits
c.produces genetic clones
d.requires less tissue differentiation than asexual reproduction
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e
The essence of meiosis is that
a. gametes are formed that can then each become an embryo by themselves.
b. gametes are formed that are diploid
c. each gamete receives one member of each pair of homologous chromosomes
d. gametes are formed that are haploid
e.each gamete receives one member of each pair of homologous chromosomes, and the gametes formed are haploid.
e
Through meiosis,
a. alternate forms of genes are shuffled
b. parental DNA is divided and distributed to forming gametes
c. the diploid chromosome number is reduced to haploid.
d. offspring will be provided with new gene combinations
e. all of these
c
If a parent cell has 16 chromosomes and undergoes meiosis, each of the resulting cells will have how many chromosomes?
a. 64
b.32.
c.16.
d.8
e.4
e
Homologous chromosomes
a. may exchange parts during meiosis
b. have alleles for the same characteristics even though the gene expression may be different.
c. are in pairs, one chromosome of each pair from the father and one from the mother.
d. pair up at the beginning of meiosis
e. all of these
b
Meiosis typically results in the production of
a. 2 diploid cells
b. 4 diploid cells
c. 4 haploid cells
d. 2 haploid cells.
e. 1 triploid cell.
c
The chromosomal DNA is duplicated in
a. prophase 1
b. metaphase 1
c. interphase
d.prophase 2
e. anaphase 2
d
The sister chromatids become seperated during ____________ of meiosis.
a. metaphase 1
b. anaphase 1
c. telophase 1
d. anaphase 2
e. prophase 2
e
Each of the cells formed during telophase 1 is
a. diploid
b.tetraploid
c.in synapsis.
d. ready to be fertilized
e. haploid
a
Crossing over usually occurs in which stage of meiosis?
a.prophase 1
b. interphase
c. anaphase 2
d. metaphase 1
e. telophase 2
d
Crossing over
a. generally results in binary fission
b. involves nucleoli
c. involves breakages and exchanges between sister chromatids.
d. involves in breakages between homologous pairs of chromosomes
a
Which does NOT occur in prophase 1 of meiosis?
a. cytokinesis
b. formation of groups of four chromatids
c. homologue pairing
d. crossing over
e. condensation of chromatin
d
Which is not true of human chromosomes?
a. The haploid number is 23.
b. The diploid number is 46
c. There are 23 pairs of chromosomes.
d. Human gametes end up with two of each type of 23 chromosomes.
e.Human gametes end up with one of each type of 23 chromosomes.
c
Gamete formation is
a. the result of the process of mitosis
b. the pairing of homologous chromosomes
c. the formation of sex cells
d. the fusion of gametes
e. a process that occurs only in asexually reproducing forms
c
Which does not produce variation?
a. crossing over
b. random alignment of chromosomes during meiosis
c. asexual reproduction
d. genetic recombination of alleles
e. sexual reproduction
c
Which of the following does not concern cells with two chromosome sets?
a. zygote
b. somatic cell
c. gamete
d. diploid
e. skin cell
d.
If meiosis did NOT occur in sexually reproducing organisms,
a. fertilization to form a zygote would be slower
b. mitosis would be sufficient to produce offspring
c. gametes would be haploid
d. the chromosome number would double in each generation
e. eggs would be haploid, but sperm would be diploid
c
Anaphase 2
a. involves the lining up of the chromosomes across the equatorial plate
b. looks the same as anaphase and anaphase 1
c.is initiated when the chromatids begin to move apart.
d. results in an unequal distribution of chromosomes to the resulting cells
e. involves the seperation of homologous chromosomes
e
Which of the following occurs in prophase1, but does not occur in prophase 2?
a. crossing over
b. pairing of homologous chromosomes
c.disappearance of nuclear membrane
d. crossing over and pairing of homologous chromosomes only
e. crossing over, pairing of homologous chromosomes, and the disappearance of the nuclear membrane.
a
Paired homologous chromosomes are found at the spindle equator during
a.metaphase 1
b. telophase1
c. Prophase 2
d. metaphase 2
e. anaphase 2
a
At the beginning of prophase 1 there are ___ chromosomes in a developing human sperm cell.
a.92
b.23
c.46
d.32
e. 63
e
Polar bodies
a. have genetic material that is not used
b. contain less cytoplasm than the egg.
c. are produced by meiosis.
d. will serve as the gametes if something happens to the egg.
e. answers a, b, and c are all true
c
Which phase is not part of the cell cycle?
a. G1
b.M
c. R
d.S
e.G2
metaphase 1
Homologous pairs of duplicated chromosomes line up together at the spindle equator.
prophase 1
Recombination of genes via crossing over occurs during this stage.
telophase 1
The number of chromosomes in each cell is reduced by half by the end of this phase.
anaphase 2
During this stage the sister chromatids separate.
telophase 1
At the end of this stage, two seperate cells exist that are each haploid.
metaphase 1
Random alignment occurs during this stage.
anaphase 1
During this stage the homologous chromosomes seperate.
metaphase 2
Duplicated chromosomes are lined up at the spindle equator, but they are not in homologous pairs.
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