The separation of two chomatids of each chromosome during early anaphase is initiated by :

Related MCQs

• If there are four chromosomes present during prophase – I, how many chromosome are there in each cell at the end of anaphase - II
• Which of the following statement is/are correct for Meiosis-II ? (i) Chromosomes are arranged on equatorial plate in prophase-II (ii) Nucleolus disappear during telophase-II (iii) In anaphase-II, the chromatids with their independent centromeres are called chromosomes. (iv) In metaphase-II, centromere of each chromosome becomes attached to filament of bipolar spindle.
• Match the following using salient features of Human genome project A B (P) Less than 2 % genome (i) 3 billion nucleotide bases (Q) Chromosome 1 (ii) 231 genes (R) Y chromosome (iii) 2968 genes (S) Human genome (iv) codes for protein
• Match the following : Coulmn-I Coulmn-II (A) Prophase-I (i) Chromosomes move toward one plane along with centromere. (B) Metaphase-II (ii) Half the number of chromosomes in seen (C) Anaphase-I (iii) Longest phase of meiosis-I (D) Telophase-I (iv) Two nuclei are seen
• Match the following : Coulmn-I Coulmn-II (A) Prophase (i) Nuclear membrane and other orgenelles reorganise (B) Metaphase (ii) Arrangement of chromatids on the poles (C) Anaphase (iii) Formation of cytoplasmic fibres of proteins (D) Telophase (iv) Arranged on equatorial plane (E) Cytokinesis (v) The formation of syncytium
• In each chromosome centromere possessing disc shaped structure is
• During meiosis crossing over occurs between which part of homologous chromosome ?
• How many chromosome number are seen in Onion and Housefly during meiosis ?
• The two chromatids of a metaphase chromosome represents :
• Which of the following statement is/are correct for prophase of mitosis ? (i) At the end of this phase nuclear membrane and nucleolus disintegrate. (ii) At the end of this phase two chromosome and a centromere holding them together. (iii) This phase begins with the condensation of chromatids along their lengths.