Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 11, Problem 24CTQ
Does crossing over occur during prophase II? From an evolutionary perspective, why is this advantageous?
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Chapter 11 Solutions
Biology 2e
Ch. 11 - Figure 11.9 If a mutation occurs so that a fungus...Ch. 11 - Meiosis usually produces___daughter___ cells. two...Ch. 11 - What structure is most important in forming the...Ch. 11 - At which stage of meiosis are sister chromatids...Ch. 11 - At metaphase I, homologous chromosomes are...Ch. 11 - Which of the following is not true in regard to...Ch. 11 - What phase of mitotic interphase is missing from...Ch. 11 - The part of meiosis that is similar to mitosis is...Ch. 11 - If a muscle cell of atypical organism has 32...Ch. 11 - Which statement best describes the genetic content...
Ch. 11 - The pea plants used in Mendel’s genetic...Ch. 11 - How do telophase I and telophase II differ during...Ch. 11 - What is a likely evolutionary advantage of sexual...Ch. 11 - Which type of life cycle has both a haploid and...Ch. 11 - What is the ploidy of the most conspicuous form of...Ch. 11 - A diploid, multicellular life-cycle stage that...Ch. 11 - Hydras and jellyfish both live in a freshwater...Ch. 11 - Many farmers are worried about the decreasing...Ch. 11 - Describe the process that results in the formation...Ch. 11 - Explain how the random alignment of homologous...Ch. 11 - What is the function of the fused kinetochore...Ch. 11 - In a comparison of the stages of meiosis to the...Ch. 11 - Why would an individual with a mutation that...Ch. 11 - Does crossing over occur during prophase II? From...Ch. 11 - List and briefly describe the three processes that...Ch. 11 - Animals and plants both have diploid and haploid...Ch. 11 - Explain why sexual reproduction is beneficial to a...Ch. 11 - How does the role of meiosis in gamete production...Ch. 11 - How do organisms with haploid-dominant life cycles...
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- what part of interphase II is crucial in meiosis for the producttion of haploid cells?arrow_forwardIs metaphase 1 haploid or diploid?arrow_forwardIn a Drosophila where somatic cells have 8 chromosomes, and gametes have 4 chromosomes, what is the number of tetrads in a cell during metaphase II?arrow_forward
- If the original parental cell had 12 pairs of homologous chromosomes, how many chromosomes would be in each gamete at the end of telophase II?arrow_forwardDuring meiosis I, assuming no crossing over, what chromatid combination(s) will be present at the completion of prophase? Draw all possible alignments of chromatids as migration begins during early anaphase.arrow_forwardwhat event takes place during meiosis prophase (as opposed to mitosis prophase) that makes it possible for crossing-over to occur?arrow_forward
- Does mitotic recombination occur in a gamete (sperm or egg cell) or in a somatic cell?arrow_forward: How many chromatids are present for each type of chromosome at the completion of crossing over? What two structures hold the chromatids together at this stage?arrow_forwardWhat would be the amount of DNA picograms during Prophase I, Metaphase I, Anaphase I and after Cytokinesis during Meiosis I for a diploid (2n=4)?arrow_forward
- How many centromeres does a diploid plant that has 9 chromosome pairs have during Metaphase I?arrow_forwardAssuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes) does a cell from this organism have immediately after fertilization?arrow_forwardWhy does therecombination frequency ofgenes vary with the distancebetween them in thechromosome?arrow_forward
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