1.1

Question 1

What is cellular differentiation

Answer 1

Process by which a cell expresses
certain genes to produce protein characteristic for that type of cell

Question 2

What is a somatic cell

Answer 2

Any cell in the body other than reproductive cells

Question 3

What is a germiline cell

Answer 3

Sex cells/gametes (sperm and ova) and the stem cells that divide to form gametes

Question 4

How do somatic cells divide

Answer 4

By mitosis to form more somatic cells

Question 5

How do germiline cells divide

Answer 5

By mitosis and meosis

Question 6

How do germiline cells divide

Answer 6

By mitosis and meiosis

Question 7

What is mitosis

Answer 7

A process which maintains the diploid chromosome number (23 pairs)

Question 8

What is meiosis

Answer 8

A process which creates two haploid (23) gametes

Question 9

1st stage of mitosis

Answer 9

Parent cell goes through DNA replication chromosomes turn into homologous chromosomes made up of 2 chromotids

Question 10

2nd stage of mitosis

Answer 10

Chromosomes line up along the equator of the cell

Question 11

3rd stage of mitosis

Answer 11

Spindle fibres pull chromotids to opposite poles of the cell

Question 12

4th stage of mitosis

Answer 12

Cytoplasm splits and 2 identical daughter cells are formed

Question 13

1st says he of meiosis

Answer 13

Parent cell goes through DNA replication chromosomes turn into homologous chromosomes made up of two chromotids

Question 14

2nd stage of meiosis

Answer 14

Similar chromosomes lineup along the equator

Question 15

3rd stage of meiosis

Answer 15

Some DNA on chromosomes are swapped

Question 16

3rd stage of meiosis

Answer 16

Some DNA on chromosomes are swapped

Question 17

Fourth sage of meiosis

Answer 17

Two cells are made containing homologous chromosomes and they divide divide to make for genetically different daughter cells all haploid

Question 18

Therapeutic uses of stem cells

Answer 18

To repair damaged or diseased organs
To regenerate damaged skin
For corneal repairs

Question 19

Therapeutic uses of stem cells

Answer 19

To repair damaged or diseased organs
To regenerate damaged skin
For corneal repairs

Question 20

Research uses of stem cells

Answer 20

To test drugs
To use as model sales to study how disease develop

Question 21

Research uses of stem cells

Answer 21

To test drugs
To use as model sales to study how disease develop

Question 22

Ethical uses of stem cells

Answer 22

Good- they treat diseases
Bad -destruction of Em

Question 23

What are embryonic stem cells?

Answer 23

Pluripotent

Question 24

What are embryonic stem cells?

Answer 24

Pluripotent

Question 25

What are tissue stem cells?

Answer 25

Multipotent

Question 26

What are tissue stem cells?

Answer 26

Multipotent

Question 27

What does pluripotent mean?

Answer 27

At means that less type of stem cell can become any type of cell / all old jeans and embryonic stem cells can be switched on

Question 28

What does multipotent mean?

Answer 28

This type of stem Sue can only become some types of cells

Question 29

What are cancer cells?

Answer 29

They are abnormal sales that do not respond to regulatory signals inthe body

Question 30

How are cancer sales formed?

Answer 30

The delayed rapidly and excessively to form a mass of abnormal cells called a tumor