2.3 Flashcards Preview

AQA Science B Unit 2 > 2.3 > Flashcards

Flashcards in 2.3 Deck (8):
1

simple animal cell consists of:

nucleus
cell membrane
cytoplasm

2

the differences in the characteristics of individuals (variation) may be due to what?

genetic or environmental causes or both

3

what is it genes have that produce different characteristics

different forms called alleles

4

genetically inherited disorders

sickle-cell anaemia
cystic fibrosis
haemophilia
polydactyl

5

what does the nucleus of a cell contain?

chromosomes

6

what do chromosomes carry?

genes which control the characteristics of the body

7

each chromosome carries a larger number of what

genes

8

what do genes have?

different forms called alleles which produce different characteristics