(i) Write a note on significance of meiosis. (ii) Differentiate betwe

1.	(i) Write a note on significance of meiosis. (ii) Differentiate between anaphase I of meiosis and Anaphase of mitosis. (iii) What do you understand by Synapsis? In which stage of Prophase-I you observe it.
Answer» (i) Formation of gametes, Genetic variability Maintenance of chromosomal number (ii) Anaphase of mitosis Centromeres and chromatids separate; chromatids moves to opposite poles due to shortening of spindle fibres. Anaphase I of meiosis: Homologous chromosomes separate while chromatids remain associated at their centromeres. (iii) Pairing of homologous chomosomes is synapsis. It is observed during zygotene stage.

(i) Write a note on significance of meiosis. (ii) Differentiate between anaphase I of meiosis and Anaphase of mitosis. (iii) What do you understand by Synapsis? In which stage of Prophase-I you observe it.

Answer»

(i) Formation of gametes, Genetic variability Maintenance of chromosomal number

(ii) Anaphase of mitosis Centromeres and chromatids separate; chromatids moves to opposite poles due to shortening of spindle fibres.

Anaphase I of meiosis: Homologous chromosomes separate while chromatids remain associated at their centromeres.

(iii) Pairing of homologous chomosomes is synapsis. It is observed during zygotene stage.