Synapsis is pairing of

Synapsis (pairing of chromosomes) takes place in

Synapsis (pairing of homologous chromosomes) and crossing over occur only in germ line cells.

Synapsis I. is pairing of homologous chromosomes. II. Is also called syndesis. III. When begins at the centromere and proceeds towards the ends, is called proterminal. IV. When begins at and proceeds towards centromere, is called procentric. Choose the correct option with correct statement(s).

Read the statements (A) Synapsis is the pairing of homologous chromosomes during zygotene (B) Synapsis is accompanied by formation of synaptonemal complex (C) The complex formed by a pair of synapsed homologous chromosomes is called a bivalent or a tetrad (D) Thefirst two stages of prophaseI are relatively short-lived compared to the next stage that is pachytene

Synapsis' involves pairing of

Synapsis' involves pairing of

Assertion : Synapsis is involved pairing of homologous chromosomes during zygotene of meiosis. Reason : Crossing over produces variations in the cells .

[A] : Synapsis occurs in zygotene stage . [R] : Pairing of homologous chromosomes is known as synapsis .

[A] : Synapsis occurs in zygotene stage . [R] : Pairing of homologous chromosomes is known as synapsis .