Question 9

(Essay)

Inversion heterokaryotypes are often characterized as having reduced crossing over and reduced fertility. Assume that you were examining a strain of organisms you knew to be inversion heterokaryotypes and saw a relatively high number of double chromatid bridges extending between anaphase I nuclei. What would be a likely
explanation for this observation? Explain with a labeled diagram.

Answer

A four -strand double crossove...

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