Chapter 8(II) Study Qs

Chapter 8(II) Study Qs - genetically similar or different...

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Chapter 8 : Cell Reproduction 1. What are homologous chromosomes? Between body cells and sex cells, which carry homologous chromosomes? In what way are homologous chromosomes alike? how are they different? 2. Assuming that color and shape are meaningful here, describe the cell below and its chromosome content using the terms provided: homologous homologue sister chromatids diploid or haploid maternal paternal 3. Males and females have the same autosomes but have different sex chromosomes; which sex chromosomes do males have and which do females have? 4. The human life cycle begins with what kinds of cells? What process is responsible for making these cells? By what cell division process does a human embryo grow into an adult? 5. How is meiosis different from mitosis? how is it like mitosis? Describe the two stages of meiosis that distribute chromosomes from the parent to daughter cells. 6. How many haploid gametes are produced by a single diploid body cell? Are the gametes
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Unformatted text preview: genetically similar or different than the original diploid cell? 7. All organisms that result from sexual reproduction are genetically unique. This genetic individuality emerges from three sources, two of which are associated with meiosis. Describe how meiosis and sexual reproduction result in genetic variation. 8. Down syndrome results from an “accident” during meiosis. What is the scientific term for this accident? What is the chromosome constitution of gametes when this accident occurs during the first phase of meiosis I? meiosis II? Which accident is of less consequence to the resulting gametes? Chapter 8 Terms to Know: asexual reproduction autosome cell division chromatin chromosome crossing over diploid Down syndrome fertilization gamete genetic recombination haploid homologous chromosome karyotype life cycle meiosis mitosis nondisjunction sex chromosome sexual reproduction sister chromatid somatic cell tetrad trisomy 21 zygote...
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Chapter 8(II) Study Qs - genetically similar or different...

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