Number of pairs of homologous chromosomes, no of chromatids and number of centromeres respectively
Pairing of homologous chromosomes
Four different steps that occur during meiosis are given in the following list. (i) Complete separation of chromatids (ii) Pairing of homologous chromosomes (iii) Lining up of paired chromosomes on equator (iv) Crossing over between chromatids Select the correct sequential arrangement of the steps.
Separation of homologous chromosomes.
Which of the following is correct about bivalent? (i) Bivalents are tetrads. (ii) A bivalent means 4 chromatids and 2 centromeres. (iii) One bivalent consists of 2 homologous chromosomes. (iv) Bivalents form in zygotene.
In which phase of meiosis homologous chromosomes seperates?
Assertion : Pairing and separation of pair of chromosomes would lead to segregation of a pair of factors they carried Reason : Two alleles of a gene pair are located on similar sites on non-homologous chromosomes
Breakage, exchange and rejoining of homologous chromosomal segments.
MBD PUBLICATION-Cell cycle and division
-QUESTION BANK
