Monkemeier April 13, 2015 – April 17, 2015 Honors Biology Unit 8

advertisement
Monkemeier
Honors Biology
April 13, 2015 – April 17, 2015
Unit 8: Cell Reproduction Quiz 3: Meiosis
Name _____________________________ Date ___________________
Unit 8: Cell Reproduction Quiz 3 Meiosis Study Guide
Text References
Biology 7th Edition (Campbell) Pages 238 – 250, 285 – 288
Biology 8th Edition ((Raven) Pages 205 – 218, 239 – 241, 249 – 250
1. Explain the significance of a karyotype with respect to homologous chromosomes.
Autosomes. Sex chromosomes and diagnosing disorders.
2. Distinguish between autosomes and sex chromosomes.
3. Distinguish between the terms haploid and diploid. You may use humans or fruit flies to
help you form your answer.
4. How are homologous chromosomes related? Be specific. How are homologous
chromosomes related to the terms haploid and diploid in humans? How are
homologous chromosomes inherited?
5. Explain how the gender of an organism such as a human, dog, horse or fruit fly can be
determined from the karyotype of the organism.
6. Female mammals experience dosage compensation. Explain how dosage compensation
relates to Barr Bodies. How does dosage compensation relate to genetic mosaics?
7. Explain how the following terms relate to karyotypes and disorders in humans:
nondisjunction, trisomy, monosomy, Down’s Syndrome, Turner’s Syndrome,
Klinefelter’s Syndrome.
8. Explain why meiosis and fertilization alternate in sexual life cycles.
9. Distinguish between gamete and somatic cell.
10.Outline the steps of meiosis and highlight where each of the following takes place:
homologous chromosomes form tetrads, crossing over can occur, homologous
chromosomes in tetrads align at equator, homologous chromosomes separate,
chromosomes align at the equator, chromatids separate, nondisjunction can occur.
11.Distinguish between spermatogenesis and oogenesis in humans. Pay close attention to
the differences between the processes and where each process occurs in either human
males or human females.
12.Sexual Reproduction allows for the creation of new individuals via new combinations of
genes known as genetic variation. Explain how each of the following contributes to
genetic variation: crossing over, random alignment of tetrads at the equator, random
combination of egg and sperm.
13. Explain how sexual life cycles contribute to evolution.
14. Compare and contrast the process of Mitosis with the process of Meiosis.
Download