1. What are the two differences between plant and animal division. 2. What is the difference between mitosis and cytokinesis? 3. What are the major differences between mitosis and meiosis? 4.How can crossing over introduce additional genetic variability into the products of meiosis? 5.Define Spermatogenesis 6. Define Oogenesis
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1. Differences between plant and animal division ** Show more…
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2. Eukaryotic cells differ from prokaryotic cells by the type of their division. - Eukaryotic cells can divide by mitotic division and meiotic division. - Prokaryotic cells divide by binary fission. - Both eukaryotic and prokaryotic cells divide by binary fission. - Eukaryotic cells divide by cytoplasmic division. 3. The events of the cell cycle: - Are under genetic control. - Include the following stages: G1, S, G2, G0, and M. - cdc2 and p53 genes are important in regulating the cell cycle. - Take different times for different types of living organisms. 4. If the phenotypic ratio of a given generation from a genetic cross is 1:1:1:1, then the genotypes of their parents can be one of the following: - AABB x AaBb - AaBB x Aabb - AaBb x aabb - AAbb x AABB 5. In the cross Rr Tt x rr tt, if red (R) is dominant over white (r) and tall (T) is dominant over dwarf (t): - 25% of offspring will be tall with red fruit. - 50% will be tall with red fruit. - 75% will be tall with red fruit. - All will be tall with red fruit. 6. Crossing over during meiosis occurs between: - Nonsister chromatids of a bivalent. - Two different bivalents. - Sister chromatids of the same chromosome. - Sister chromatids of different chromosomes. 7. Gametes contain one type of each kind of chromosome because: - Two replications of DNA occur during meiosis. - The homologous chromosomes separate during the first meiotic division. - Crossing over occurs during prophase II. - The homologous chromosomes separate during meiosis II. 8. The substages of meiotic prophase I are the following: - Leptonema, zygonema, pachynema, diplonema, and diakinesis. - Leptonema, zygonema, diakinesis, and diplonema. - Diakinesis, diplonema, pachynema, leptonema, and zygonema. - Pachynema, leptonema, zygonema, diakinesis, and diplonema.
Adi S.
1) What is mitosis and how does it relate to the cell cycle? What are the differences between plant mitosis and animal mitosis? 2) List all key stages of the cell cycle. Which of the stages of the cell cycle lasts the longest and why? 3) How does prokaryotic (bacteria) cell division differ from eukaryotic cell division? 5) Define meiosis and state any three unique differences between meiosis and mitosis of animals such as humans. 8) Compare and contrast gametogenesis in human males and females. How does this ensure that the human genotype is maintained in normal humans? What possible variations can occur and what possible abnormalities will result from such? 9) What is euploidy and how does it differ from aneuploidy? Describe any two types of aneuploidy.
Sana R.
5. Describe the major differences between Meiosis I and Meiosis II primarily as it relates to the separation of chromosomes as cells divide. 6. Explain why meiosis leads to significant genetic variation and mitosis does not. 7. Describe three major differences in the structure of RNA and DNA. 8. Why was the garden pea a good choice as an experimental organism in Mendel’s work? 9. Describe the relationships between trait, character, genotype & phenotype 10. Compare & contrast homologous and non-homologous chromosomes.
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