Question

Which of the following is incorrect about lateral filaments?

(a) The lateral filaments are composed of chromatids

(b) They can be spaced as much as 100-125 nm apart

(c) The lateral filaments have DNA elements along with RNA and Proteins

(d) The lateral filaments are connected by longitudinal connections

The question was asked in semester exam.

I would like to ask this question from Meiosis Prophase 1 : Synaptonemal Complex in chapter Chromosomal Changes During Meiosis of Cytogenetics

Answer 1

The correct answer is (d) The lateral filaments are connected by longitudinal connections

Easiest explanation: The two lateral elements have chromatids, i.e. they have DNA along with RNA and proteins. They are however connected via transverse elements or LC elements making a ladder like an arrangement.