The number of chiasmata depends on what?

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Chiasmata are the $X$-shaped structures formed between non-sister chromatids of homologous chromosomes during the $pachytene$ stage of $prophase-I

Vedclass · Accepted Answer

Length of the chromosome

Vedclass · Answer

(A) Chiasmata are the $X$-shaped structures formed between non-sister chromatids of homologous chromosomes during the $pachytene$ stage of $prophase-I$ of $meiosis$. These structures represent the sites where crossing over has occurred. The number of chiasmata is directly proportional to the length of the chromosome, as longer chromosomes provide more space and opportunities for genetic recombination events to occur.

List-$I$ (Phase of meiosis)	List-$II$ (Event that occurs)
$1$. Prophase $I$	Crossing over occurs
$2$. Metaphase $I$	Sister chromatids migrate to opposite poles
$3$. Anaphase $I$	Homologous chromosomes line up at the equator in pairs

Similar Questions

For viewing diakinesis,which one of the following would be a suitable material?

Assertion : During zygotene,chromosomes show bivalent stage.
Reason : Bivalent is half the number of chromosomes.

$A$: In the diplotene sub-stage,the two chromosomes of a homologous pair move away from each other.
$R$: The connection is maintained at the site where crossing over has occurred in homologous chromosomes.

Synapsis is the pairing of:

Vedclass Test Series

Exam Paper Generator

Online Exam Module