A dark-haired, short-toed woman who is heterozygous in both ways, married a normal-toed man and gave birth to twins twice.
| October 27, 2020 | Education
A dark-haired, short-toed woman who is heterozygous in both ways, married a normal-toed man and gave birth to twins twice. The first time zygotes were formed from the fusion of gametes Ab + Ab = AAbb; the second time from the fusion of gametes ab + ab = aabb. Which twins – 1st or 2nd – are identical and which are non-identical?
Answer: identical second ones – aabb.
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