variation Flashcards
1
Q
interspecific variation
A
variation that exists between different species
2
Q
intraspecific variation
A
variation between same species
3
Q
continuous variaion
A
two extremes and a full range of intermediate values between those examples
controlled by many genes, affected by environmental factors
4
Q
discontinuous variation
A
two or more distinct categories, no intermediate values
controlled by single gene,not affected by environmental factors
5
Q
causes of vaiation
A
genetic differences
environmental influences
6
Q
what causes genetic differences
A
mutations, sudden changes which may be passed on to the next generation
meiosis
random fusion of gametes
7
Q
how can environment cause variation
A
variation due to both genetic differences and environmental influences
influence gene expression
