Question

Number of chiasma / total number of bivalent is________________

(a) Degree of terminalization

(b) Frequency of terminaliztaion

(c) Degree of crossing over

(d) Frequency of crossing over

I have been asked this question by my school principal while I was bunking the class.

My enquiry is from Meiosis Prophase 1 : Diplotene and Diakinesis topic in portion Chromosomal Changes During Meiosis of Cytogenetics

Answer 1

Correct answer is (d) Frequency of crossing over

Best explanation: The following ratio is for the frequency of crossing over that shows how many cross over events take place / number of bivalent. The degree of terminalization on other hand is = number of terminalzed chromosome/ total number of bivalent.