6. Chromosomal Variation
Chromosomal Mutations: Aneuploidy
2:49 minutes
Problem 11c
Textbook Question
Textbook QuestionWhen cows have twin calves of unlike sex (fraternal twins), the female twin is usually sterile and has masculinized reproductive organs. This calf is referred to as a freemartin. In cows, twins may share a common placenta and thus fetal circulation. Predict why a freemartin develops.
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