At anaphase stage of mitosis
I. The centromeres split into two and the spindle fibres pull the daughter centromeres to opposite poles.
II. Chromosomes shorten and thicken by coiling and tighten packaging of their components.
III. The separated chromatids are pulled along behind the centromeres.
IV. Chromosomes line up around the equator of the spindle.
Choose the option which correct statement(s).

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).

A Mitosis produces two identical daughter cell. B Meiosis introduces variation due to gene exchange or recombination. C During anaphase chromosome have two chromatids. D Telophase I may be absent. Choose the option with the correct statements.

A Mitosis produces two identical daughter cell. B Meiosis introduces variation due to gene exchange or recombination. C During anaphase chromosome have two chromatids. D Telophase I may be absent. Choose the option with the correct statements.

The following statements describe events during the mitotic cell cycle. What is the correct of these events in the mitotic cell cycle ? I. chromosomes migrated to opposite poles of the spindle. II. Chromosomes arrange themselves at the equator of the spindle. III. Chromosomes condense and the number membrane disappears . IV. Centromeres divide.

The following statements describe events during the mitotic cell cycle. What is the correct of these events in the mitotic cell cycle ? I. chromosomes migrated to opposite poles of the spindle. II. Chromosomes arrange themselves at the equator of the spindle. III. Chromosomes condense and the number membrane disappears . IV. Centromeres divide.

The events shown below occur during different phases - A. Centromere splits, chromatids separate and move to opposite poles, chromatids are now called chromosome B. Chromosomes cluster at opposite poles, decondensation of chromosome, reappearance of NM, GB and ER. C. Chromosomal replication D. Kinetochores attach to spindle fibres and chromosome are arranged at equatorial plate E. Condensation of chromosomal materials Which or the following correctly identifies each of the phases described-

The events shown below occur during different phases - A. Centromere splits, chromatids separate and move to opposite poles, chromatids are now called chromosome B. Chromosomes cluster at opposite poles, decondensation of chromosome, reappearance of NM, GB and ER. C. Chromosomal replication D. Kinetochores attach to spindle fibres and chromosome are arranged at equatorial plate E. Condensation of chromosomal materials Which or the following correctly identifies each of the phases described-

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.

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.