Mitosis and Meiosis

Question 1

kinetochore

Answer 1

Protein structure where microtubules attach to sister chromatids; regulates movements of chromosomes

Question 2

Centromere

Answer 2

Specific DNA sequences + proteins that bind these; links sister chromatids together; site of kinetochore assembly; constriction

Question 3

centrosome

Answer 3

MicroTubule Organizing Center (MTOC); paired centrioles

Question 4

Telomere

Answer 4

At ends of chromosomes; protects these

-A telomere is a region of repetitive nucleotide sequences

Question 5

syndactyly

Answer 5

• condition of whole of partial fusion of fingers or toes

- results when apoptosis does not occur

Question 6

centrosome

Answer 6

paired centrioles

Question 7

what tubulin is present at the microtubule-organizing center?

Answer 7

Has gamma tubulin

Question 8

centrioles are made up of

Answer 8

9 triplet microtubules of alpha and beta tubulin

Question 9

how does mitosis get started? What is M-Cdk’s role in the process?

Answer 9

M-Cdk causes mitosis-promoting factor to phosphorylate nuclear lamins. Phosphorylation of lamins initiates the breakdown of the nuclear envelope
-assembly of spindle and chromosome condensation begins