Unit 2.3 Meitosis

Question 1

Mitosis

Answer 1

New biological material comes about as a result of the prosess and the chromosome of the cells are duplicated ajd the DNA shared between 2 daughter cells

Question 2

What are chromosomes

Answer 2

Made of mass coiled threads of DNA and proteins. Translucent to both light and electrons.

Question 3

The cell cycle

Answer 3

Divide on a regular based to grow
Then non dividing cells increase in mass and size
Replicated DNA ready for division
Followed by mitosis of active division when new cells separated
Can be 24 hours or a few years

Question 4

Histones

Answer 4

Positively charged protein involving in the cooking of DNA to form a defence chromosomes in cell division

Question 5

Nucleosomes

Answer 5

Defence cluster it DNA wound amount histones

Question 6

Karytype

Answer 6

Ways of displaying an image chromosome of a cell to show the pairs of auto-aimed and sex chromosomes

Question 7

Chromatial

Answer 7

One strand of replicated chromosome pair rjat is joined to the other chromatic to the centromere

Question 8

Cyclins

Answer 8

Small protein that build up and are involved in the control of the cell cycle by their attachment to cyclin dependant kinases

Question 9

Cyclin- dependent kinases

Answer 9

Are enzymes involved in the control of the cell cycle. Other proteins activated attachments