answers study questions 18

answers study questions 18 - Study questions 18 (Most of...

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Study questions 18 (Most of these questions are from past Intro Biology exams) Aphids have both a sexual and a clonal life cycle. During clonal reproduction a mother aphid forms progeny through embryogenesis of somatic cells, i.e. of non-zygotic cells, in a process called "parthenogenesis". The following questions pertain to this process. 1. The genotype of the "mother" at the "K" locus is Kk. The most likely genotype of 20 individu- als produced through "parthenogenesis" is: a. all Kk 2. The genotype of the "mother" at the "K" locus is Kk. The most likely genotype of 20 individu- als produced through sexual processes: c. 5 kk, 5 KK,10 Kk assuming the father is also Kk 3. Some aphid species only reproduce through parthenogenesis while others form sexual zygotes and embryos. Muller's ratchet impact and type of effect on aphids is best described by the fol- lowing (6 pt): answer effect on zygotic aphid species effect on parthenogenic aphid species effect depends on c light or none strong and negative accumulation of mutations - 1 -
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The image shows two cells of the same organism. Based on your understanding of the cell cycle, answer the questions below. 4. The cell displayed at the top above is in the following stage: d. start of meiosis I 5. The cell displayed at the bottom is in the following stage: c. middle of meiosis II - 2 -
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6. If the organism to which this cell belongs is heterozygous for the W gene (genotype Ww), the following applies (6 pt) answer if G carries the following then H carries and L carries b W w or W nothing 7. The object marked as F consists of : c. one chromatid d. one chromosome, before replication note that both of these could be argued to be right. The chromatids were just split at metaphase II and became chromosomes. 8. Eukarya represent a major subdivision of living organisms. Consider the processes and struc-
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answers study questions 18 - Study questions 18 (Most of...

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