Question Detail
Question
The paired up chromosomes at prophase I are often described as: a. Bivalents b. Tetravalents c. Monovalents d. Trivalents
Correct Answer
Option A is the correct answer.
Detailed Explanation
During prophase I, homologous chromosomes pair up to form structures called bivalents (or tetrads). A bivalent consists of two chromosomes (a pair of homologues) and four chromatids total.
Hint
'Bi' means two, referring to the two homologous chromosomes.