inheritance; b6 variation and evoloution Flashcards
1
Q
what is variation?
A
differences in the characteristics of inddivulas in a population
2
Q
what are the three main causes of varition?
A
- the alleles which the individual have inherited(genetic)
- the conditions they have devoloped in ( enviromental)
- a combonation of genese and the enviroemnt
3
Q
do mutations affect the phenotype?
A
**most have no effect but some **affect the phenotype and **very few **determine the phenotype
4
Q
what can lead to rapid changes in the species?
A
if the new phentype cause by the mutation is suited to an enviroemntal chnage it will lead to rapid chnages in the sepcicies.
5
Q
A
6
Q
A
7
Q
what is the definition of evoloution?
A
change in the inherited chacteristics of a population overtime through a process of natural selection
8
Q
what does the theroy of eveolution by natural selection state?
A
