. Complete the following statements using as many ofthe following terms as are appropriate: mitosis, meiosis I (first meiotic division), meiosis II (second meioticdivision), and none (not mitosis nor meiosis I normeiosis II).a. The spindle apparatus is present in cells undergoing_____.b. Chromosome replication occurs just prior to _____.c. The cells resulting from _____ in a haploid cellhave a ploidy of n.d. The cells resulting from _____ in a diploid cellhave a ploidy of n.e. Homologous chromosome pairing regularly occursduring _____.f. Nonhomologous chromosome pairing regularlyoccurs during _____.g. Physical recombination leading to the productionof recombinant progeny classes occurs during_____.h. The separation of sister centromeres occurs during_____.i. Nonsister chromatids are found in the same cellduring _____.
Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
. Complete the following statements using as many of
the following terms as are appropriate: mitosis, meiosis I (first meiotic division), meiosis II (second meiotic
division), and none (not mitosis nor meiosis I nor
meiosis II).
a. The spindle apparatus is present in cells undergoing
_____.
b. Chromosome replication occurs just prior to _____.c. The cells resulting from _____ in a haploid cell
have a ploidy of n.
d. The cells resulting from _____ in a diploid cell
have a ploidy of n.
e. Homologous chromosome pairing regularly occurs
during _____.
f. Nonhomologous chromosome pairing regularly
occurs during _____.
g. Physical recombination leading to the production
of recombinant progeny classes occurs during
_____.
h. The separation of sister centromeres occurs during
_____.
i. Nonsister chromatids are found in the same cell
during _____.
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