Variation and Evolution Flashcards
1
Q
Define a haploid
A
A sex cell that contains one set of unpaired chromosomes
2
Q
What does diploid mean
A
A cell that has the normal number of chromosomes
3
Q
What is continuous variation?
A
Variation on a spectrum (height or weight)
4
Q
What is discontinuous variation?
A
A characteristic with only certain possible categories (eye colour, blood group)
5
Q
What happens in asexual production?
A
Offspring are clones
6
Q
Which organisms have asexual variation?
A
Bacteria, spores (fungi), bulbs
7
Q
What happens during asexual production?
A
Mitosis
8
Q
What is fertilisation?
A
The fusion of the nuclei of male and female gametes
9
Q
How does the number of cells in an embryo increase?
A
Via mitosis
10
Q
What happens when there are enough cells in an embryo?
A
They specialise
