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52 Cards in this Set
- Front
- Back
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Meiosis Terminology Concept Map |
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Interactions among chromosomes |
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Animal life cycles |
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What is the ploidy of organisms that have two sets of chromosomes? A. n B. 3n C. 4n D. 2n |
D. 2n |
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What information can not be obtained from an individual's karyotype? A. The types of chromosomes present in the individual B. The sequence of bases of a particular gene C. The ploidy of the individual D. The number of autosomes in the individual |
B. The sequence of bases of a particular gene |
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True or false? A haploid organism has one pair of homologous chromosomes. |
False |
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If a cell has 24 chromosomes, how many chromosomes would each of its four daughter cells have after meiosis? A. 12 B. 6 C. 36 D. 24 |
A. 12 |
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Which of the following statements about meiosis and mitosis is true? A. In mitosis and meiosis I, homologous chromosomes move independently of each other. B. Each daughter cell produced during meiosis and mitosis is genetically identical to the parent cell. C. In meiosis II and mitosis, a diploid cell divides. D. Meiosis II is similar to mitosis in that sister chromatids of each chromosome separate. |
D. Meiosis II is similar to mitosis in that sister chromatids of each chromosome separate. |
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What is the composition of a tetrad at the beginning of prophase I? A. Two sister chromatids B. Four different chromosomes C. Two pairs of homologous chromosomes D. One pair of homologous chromosomes |
D. One pair of homologous chromosomes |
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Meiosis I produces _____ cells, each of which is _____. A. four ... haploid B. two ... haploid C. two... identical to the other D. two... diploid four ... diploid |
B. two ... haploid |
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Meiosis II typically produces _____ cells, each of which is _____. A. two... diploid B. four ... identical to the other C. four ... haploid D. two ... haploid E. four ... diploid |
C. four ... haploid |
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This animation illustrates the events of _____. A. prophase I B. prophase II C. telophase I and cytokinesis D. telophase II and cytokinesis E. anaphase II |
B. prophase II |
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This animation illustrates the events of _____. A. telophase I and cytokinesis B. prophase II C. interphase D. anaphase I E. anaphase II |
E. anaphase II |
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This animation illustrates the events of _____. A. telophase I B. telophase and cytokinesis C. telophase I and cytokinesis D. telophase II E. telophase II and cytokinesis |
E. telophase II and cytokinesis |
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During _____ sister chromatids separate. A. prophase I B. metaphase I C. prophase II D. interphase E. anaphase II |
E. anaphase II |
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This animation illustrates the events of _____. A. telophase I and cytokinesis B. telophase II and cytokinesis C. interphase D. telophase and cytokinesis E. prophase II and cytokinesis |
A. telophase I and cytokinesis |
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At the end of _____ and cytokinesis, haploid cells contain chromosomes that each consist of two sister chromatids. A. telophase I B. metaphase II C. interphase D. telophase E. telophase II |
A. telophase I |
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This is an animation of _____. A. telophase II and cytokinesis B. metaphase I C. metaphase II D. prophase I E. prophase II |
D. prophase I |
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This is an animation of _____. A. interphase B. metaphase II C. anaphase II D. prophase I E. anaphase I |
B. metaphase II |
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This is an animation of _____. A. anaphase I B. prophase II C. metaphase I D. telophase I and cytokinesis E. metaphase II |
C. metaphase I |
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Synapsis occurs during _____. A. prophase I B. metaphase II C. prophase II D. telophase I and cytogenesis anaphase II |
A. prophase I |
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Homologous chromosomes migrate to opposite poles during _____. A. telophase II and cytokinesis B. metaphase II C. metaphase I D. prophase II E. anaphase I |
E. anaphase I |
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During _____ chromosomes align single file along the equator of a haploid cell. A. metaphase II B. anaphase I C. prophase I D. metaphase I E. telophase I and cytokinesis |
A. metaphase II |
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This animation illustrates the events of _____. A. metaphase II B. telophase I and cytokinesis C. prophase I D. prophase II E. anaphase I |
E. anaphase I |
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At the end of _____ and cytokinesis there are four haploid cells. A. telophase II B. prophase II C. interphase D. prophase I E. anaphase I |
A. telophase II |
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During _____ a spindle forms in a haploid cell. A. prophase II B. metaphase II C. anaphase II D. prophase I E. telophase I and cytokinesis |
A. prophase II |
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This animation illustrates _____. A. anaphase I B. prophase II C. prophase I D. interphase E. anaphase II |
D. interphase |
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What name is given to this process? A. sexual reproduction B. fertilization C. meiosis D. asexual reproduction E. gametogenesis |
D. asexual reproduction |
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Human gametes are produced by _____. the cell cycle fertilization asexual reproduction mitosis E. meiosis |
E. meiosis |
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Normal human gametes carry _____ chromosomes. A. 46 pairs of B. 23 C. 23 pairs of D. 5 E. 46 |
B. 23 |
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Which of these cells is (are) haploid? A. D B. C and D C. B and C D. B E. A and D |
B. C and D |
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A diploid organism whose somatic (nonsex) cells each contain 32 chromosomes produces gametes containing _____ chromosomes. A. 64 B. 30 C. 32 D. 16 E. 8 |
D. 16 |
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Which of these individuals is a homozygous genotype? A. aG B. Aa C. Gg D. AA E. AG |
D. AA |
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All the genes in a population are that population's _____. A. fitness B. phenotype C. genotype D. gene pool E. Hardy-Weinberg |
D. gene pool |
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Genetic drift is a process based on _____. A. the role of chance B. mutation C. immigration D. emigration E. differential reproductive success correlated to the relationship between a phenotype and the environment |
A. the role of chance |
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A mutation occurs when _____. A. population sizes are small B. individuals enter a population C. some individuals leave more offspring than other individuals D. there is a change in the DNA sequence of a gene E. individuals leave a population |
D. there is a change in the DNA sequence of a gene |
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Every few years a giant axe chops off the head of every person who is over 6 feet tall. How will this affect the human population? A. Gene flow will increase. B. The mutation rate will increase. C. Alleles that promote "tallness" will decrease in frequency. D. Genetic drift will play less of a role in the evolution of humans. E. It will increase in number since shorter people use fewer resources than taller people. |
C. Alleles that promote "tallness" will decrease in frequency. |
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Modern travel along with migration reduces the probability of _____ having an effect on the evolution of humans. A. natural selection B. mutation C. genetic drift D. gene flow E. disease |
C. genetic drift |
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The ease with which humans travel across the globe is likely to increase _____. A. mutation B. gene flow C. genetic drift D. natural selection E. all of these |
B. gene flow |
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Homologous pairs of chromosomes are lined up independently of other such pairs during _____. A. prophase II B. anaphase I C. metaphase II D. telophase II E. metaphase I |
E. metaphase I |
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Crossing over, resulting in an increase in genetic variation, occurs between _____. A. nonsister chromatids of homologous chromosomes B. sister chromatids of homologous chromosomes C. sister chromatids of nonhomologous chromosomes D. nonsister chromatids of nonhomologous chromosomes E. sex cells and somatic cells |
A. nonsister chromatids of homologous chromosomes |
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In human gamete production there is an average of _____ crossover events per chromosome pair. A. 9–10 B. 0–1 C. 10+ D. 5–6 E. 2–3 |
E. 2–3 |
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Which of these gametes contain one or more recombinant chromosomes? A. A, B, and C B. C, D, E, F, and G C. B, C, D, and G D. B, C, and G E. B, C, F, and G |
E. B, C, F, and G |
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This animation illustrates _____ as it occurs during _____. A. cytokinesis ... telophase I B. karyokinesis ... prophase II C. random fertilization ... prophase I D. centrosome separation ... anaphase II E. crossing over ... prophase I |
E. crossing over ... prophase I |
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This animation illustrates the process of _____. A. centromere separation B. cytokinesis C. crossing over D. karyokinesis E. random fertilization |
C. crossing over |
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Which of these gametes contains one or more recombinant chromosomes? A. A and D B. D and E C. B and C D. A and B E. A and C |
C. B and C |
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What is a nondisjunction? |
An error in cell division that causes homologous chromosomes or sister chromatids to move to the same side of the dividing cell |
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When can nondisjunction occur? |
- In meiosis, when homologous chromosomes fail to separate - In mitosis, when sister chromatids fail to separate - In meiosis, when sister chromatids fail to separate |
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What kind of cell results when a diploid and a haploid gamete fuse during fertilization? |
A triploid cell |
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Of the following chromosomal abnormalities, which type is most likely to be viable in humans? A. Monosomy B. Haploidy C. Triploidy D. Trisomy |
D. Trisomy |
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If a diploid cell undergoes meiosis and produces two gametes that are normal, and one with n − 1 chromosomes, and one with n + 1 chromosomes, what type of error occurred? |
A nondisjunction error occurred in meiosis II, in which both sister chromatids of a chromosome migrated to the same pole of the cell. |
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If a diploid cell undergoes meiosis and produces two gametes with n + 1 chromosomes and two gametes with n− 1 chromosomes, what type of error occurred? |
A nondisjunction error occurred in meiosis I, in which both members of a homologous pair migrated to the same pole of the cell. |
