Sexual reproduction and Gene Mutation Flashcards
1
Q
How do we inherit our genetic characeristics?
A
From our parents, this happens during sexual reproduction. During sexual reproduction the sperm joins with the egg during fertilisation.
2
Q
The nucleus of a cell contains?
A
Chromosomes
3
Q
Chromosomes hold?
A
Genes
4
Q
Genes control our?
A
Characteristics
5
Q
What do organisms that reproduce sexually show?
A
A wide range or variation in their personal characteristics.
6
Q
Define clones?
A
Organisms that reproduce asexually produce genetically identical offspring that are also identical to their parents.
7
Q
What living organism often reproduces asexually?
A
Plants
8
Q
Asexually is what type of cell division?
A
Mitosis
9
Q
Define mutation?
A
The change in a gene or DNA or chromosome.
10
Q
What are the 3 causes of mutations?
A
- Can happen naturally.
- Ionising radiation e.g. UV causing cancer
- Carcinogens (cancer causing chemicals)
