Part 3- Chromsomes and cells Flashcards
1
Q
Where are chromosomes found?
A
They are found in the nucleus, they are made up of DNA. Genes are sections of the chromosomes.
2
Q
What does the nucleus contain?
A
The genetic information within a cell (chromosomes)
3
Q
Where are chromosomes found?
A
Found in the cell nucleus, they are long coils of DNA that contain genes.
4
Q
What is the gene?
A
A section of DNA in the chromosome that codes for certain proteins.
5
Q
The sperm cell and egg cell have half the number of chromosomes. What are they and what is the number of chromosomes?
A
Each contain 23 chromosomes making up 46 overall.
6
Q
Can a stem cell become anything?
A
Yes.
7
Q
What are stem cells?
A
The inner cells of the embryo which go to form every type of cell in the body.
8
Q
Future of stem cells:
A
- replacing damaged body parts i.e nerves/skin
- growing new organs
- paralysis, infertility and major burns could be helped.
9
Q
Problems of stem cells:
A
- ethical problems with using embryos. Seen as potential human beings.
- slow, difficult, expensive.
- could cause cancer
