Question: 2. Size happens to be a sex-linked recessive trait in sea urchins with spine size being recessive…
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Show transcribed image text 2. Size happens to be a sex-linked recessive trait in sea urchins with spine size being recessive a. If the male has small spines, what is his genotype? b. If the female is heterozygous for spine size, what is her genotype? What percent of their children will be small? And will these pygmy kids be boys, girls or cither sex? Show your work d. Can Dr. Ripley purchase a male that is a carrier for spine size? Explain 3. She mates the two sea urchins and has a brood of 200! Surprisingly, the length of the spines vary considerably such that almost every spine size from small to long and everything in- between is seen. And the color of their spines are purple at the base with black tips a. What type of inheritance is spine size showing? b. What type of inheritance is color showing?
2. Size happens to be a sex-linked recessive trait in sea urchins with spine size being recessive a. If the male has small spines, what is his genotype? b. If the female is heterozygous for spine size, what is her genotype? What percent of their children will be small? And will these pygmy kids be boys, girls or cither sex? Show your work d. Can Dr. Ripley purchase a male that is a carrier for spine size? Explain 3. She mates the two sea urchins and has a brood of 200! Surprisingly, the length of the spines vary considerably such that almost every spine size from small to long and everything in- between is seen. And the color of their spines are purple at the base with black tips a. What type of inheritance is spine size showing? b. What type of inheritance is color showing?
