Choose the incorrect statement(s) regarding Metaphase of Mitosis.

I. Each chromosome splits up to form 2 chromatids.

II. The newly formed chromatids remain united at centromere on two different

kinetochores.

III. Has only one of unit of DNA from each parent.

IV. Spindle fibres attach to centromere to pull the chromatids toward the poles.

Q. In the Metaphase stage of Mitosis, each chromosome consists of _____ chromatid (s), _______ centromere(s), _______kinetochore(s) and ______ unit(s) of DNA .

Q. Which of the following events takes place during anaphase stage of mitosis?
I. Spindle fibres attach to kinetochores of chromosomes
II. Centromeres split and chromatids separate
III. Chromatids move to opposite poles
IV. Nucleolous, Golgi complex and E.R. reform

Q. The events shown below occur during different phases:
a. Centromere splits, chromatids separate and move to opposite poles, chromatids are now called chromosomes.
b. Chromosomes cluster at opposite poles, decondensation of chromosomes, reappearance of the nuclear membrane, golgi bodies, and the ER.
c. Chromosomal replication.
d. Kinetochores attach to spindle fibres and chromosomes are arranged at the equatorial plate.
e. Condensation of chromosomal materials.

Which of the following correctly identifies each of the phases described?

Q. Assertion :During anaphase, centromere of each chromosome splits to the chromatids separate. Reason: During anaphase, chromatids move to opposite poles.

Q. In the Metaphase stage of Mitosis, each chromosome consists of _____ chromatid (s), _______ centromere(s), _______kinetochore(s) and ______ unit(s) of DNA .