Genetic Material in Eukaryotes

Question 1

Two States of Genetic Material

Answer 1

1.) Chromatin (during Interphase)
2.) Chromosomes (during cell division)

Question 2

Which is condensed and which is Uncondensed what does this mean?

Answer 2

Chromatin is uncondensed and chromosomes are condensed, this simply means that they are visible under a microscope.

Question 3

Define a Nucleosome

Answer 3

A nucleosome is the basic structural unit, to put it simply it is DNA coiled around EIGHT histones.

Question 4

Define Chromosomes

Answer 4

Chromosomes are distinct groupings of condensed chromatin.

Question 5

Why do chromosomes coil?

Answer 5

They coil into compact structures, this allows for the chromatids to separate without tangling during cell division

Question 6

What are chromatids?

Answer 6

A chromosome that gets replicated.

Question 7

What are the chromatids held together with?

Answer 7

A centromere.

Question 8

What are kinetochores

Answer 8

They are proteins associated with the centromere, essentially spindle fibres attached to the chromosome during cell division