S1 Review: Cell Division & Reproduction Question Preview (ID: 12054)
S1 Review: Cell Division & Reproduction.
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Which is true of mitosis?
a) Mitosis consists of three phases.
b) Mitosis is responsible for the formation of sex cells.
c) Mitosis causes cells to swell to ten times their normal size.
d) Mitosis results in two identical daughter cells.
Which statement is true of meiosis?
a) DNA is replicated twice during meiosis.
b) Meiosis is involved in growth and repair.
c) One cell division occurs during meiosis.
d) Meiosis reduces the chromosome number by half.
Which stage of meiosis is represented by chromatids being pulled to opposite sides of a cell?
a) metaphase I
b) telophase I
c) anaphase II
d) prophase II
Which phase of the cell cycle is characterized by the formation of two identical cells?
a) cytokinesis
b) interphase
c) G1 phase
d) G2 phase
Why do sperm cells and egg cells contain only 23 chromosomes each?
a) so that offspring will not inherit all of their genes from one parent and none from the other
b) so that when the chromosomes split into two halves, there will be 46 halves in each cell
c) so that when the two combine during fertilization, the fertilized egg will contain 46 chromosomes
d) so that when those 23 chromosomes duplicate themselves, there will be a total of 46 chromosomes in e
Which stage of meiosis is represented by alignment of tetrads on the equator?
a) prophase II
b) anaphase II
c) telophase I
d) metaphase I
Which stage of mitosis is represented by the image below?
a) prophase
b) anaphase
c) metaphase
d) telophase
Which phase of mitosis is characterized by the chromosomes attaching to the spindle fibers and aligning in the middle of the cell?
a) prophase
b) metaphase
c) anaphase
d) telophase
Which phase of mitosis is characterized by chromatin condensing into chromosomes?
a) anaphase
b) prophase
c) metaphase
d) telophase
During metaphase I of meiosis
a) the pairs of homologous chromosomes are separating.
b) the chromosomes are coiling and becoming thicker.
c) the sister chromatids are attaching to spindle fibers.
d) the homologous chromosomes are undergoing crossing-over.
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