Term
| When a cell undergoes mitosis the daughter cells have identical genes |
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Definition
| and the daughter cell has genes identical to those of the mother cell that produced it |
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Term
| In mitosis, if a parent cell has 16 chromosomes, each daughter cell will have how many chromosomes? |
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Definition
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Term
| Chromatids that are attached at the centromere are called what kind of chromatids? |
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Definition
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Term
| Cells with two sets of genetic information are described by the term |
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Definition
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Term
| Proteins associated with DNA in eukaryotes are ___ |
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Definition
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Term
Mitosis and cytoplasmic division function in _____ .
a. asexual reproduction of single-celled eukaryotes
b. growth, tissue repair, and sometimes asexual reproduction in many multicelled eukaryotes
c. gamete formation in prokaryotes
d. both a and b |
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Definition
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Term
| A duplicated chromosome has _____ chromatid(s). |
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Definition
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Term
| In a chromosome, a _____ is a constricted region with attachment sites for microtubules. |
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Definition
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Term
| A somatic cell having two of each type of chromosome has a (n) _____ chromosome number. |
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Definition
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Term
| DNA replication occurs ___ |
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Definition
| during the gap phasses of interphase |
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Term
| Chromosomes are duplicated during which period? |
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Definition
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Term
| The chromosomes are aligned at the spindle equator during ___ |
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Definition
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Term
| The chromosomes are moving to opposite poles during ___ |
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Definition
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Term
| The chromosomes have arrived at opposite poles during ___ |
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Definition
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Term
Which of the following is the proper sequence for mitosis?
I. metaphase
II. telophase
III. prophase
IV. anaphase
a. I, III, IV, II
b. I, II, III, IV
c. III, I, IV, II
d. IV, I, III, II
e. III, IV, I, II |
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Definition
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Term
| Interphase is the part of the cell cycle when _____ . |
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Definition
| a cell grows and duplicates its DNA |
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Term
| The distribution of cytoplasm to daughter cells is accomplished during ____ |
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Definition
| cytokinesis (cytoplasm division) |
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Term
Four of the five answers listed below are stages of actual nuclear division. Select the exception.
a. anaphase
b. prophase
c. interphase
d. telophase
e. metaphase |
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Definition
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Term
| The essence of meiosis is that each gamete receives one member of each pair of homologous chromosomes and ___ |
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Definition
| the gametes formed are haploid |
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Term
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 are provided with new gene combinations.
e. all of these |
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Definition
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Term
| If a parent cell has 16 chromosomes and undergoes meiosis, the resulting cells will have how many chromosomes? |
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Definition
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Term
| Copies of chromosomes linked together at their centromeres at the beginning of meiosis are appropriately called what kind of chromatids? |
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Definition
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Term
| Meiosis typically results in the production of ___ |
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Definition
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Term
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Definition
| the formation of sex cells |
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Term
| Which does NOT produce variation? |
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Definition
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Term
Sexual reproduction requires _____ .
a. meiosis
b. gamete formation
c. fertilization
d. all of the above |
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Definition
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Term
| An animal cell having two rather than one of each type of chromosome has a _____ chromosome number. |
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Definition
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Term
Generally, a pair of homologous chromosomes _____ .
a. carry the same genes
b. are the same length, shape
c. interact at meiosis
d. all of the above |
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Definition
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Term
| Meiosis _____ the parental chromosome number. |
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Definition
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Term
| Meiosis is a division mechanism that produces _____ . |
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Definition
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Term
| Before the onset of meiosis, all chromosomes are _____ . |
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Definition
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Term
| Pairing of homologues and crossing over occur during ___ |
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Definition
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Term
| Crossing over alters the composition of chromosomes and results in ___ |
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Definition
| new combinations of alleles being channeled into the daughter cells |
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Term
| The sister chromatids become separated during ____ of meiosis. |
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Definition
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Term
| Duplicated chromosomes move away from their homologue and end up at the opposite spindle pole during _____ . |
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Definition
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Term
| Sister chromatids of each duplicated chromosome move apart and end up at opposite spindle poles during _____ . |
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Definition
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