Genetic Diversity And Adaption

Question 1

What is gene diversity

Answer 1

The total number of different alleles in a population

Question 2

What is a population

Answer 2

A group of individuals of the same species that can live in the same place and can interbreed

Question 3

What is a species

Answer 3

One or more population

Question 4

What is genetic diversity dependent on

Answer 4

The greater number of different allele that all members of species posses the greater the genetic diversity, it is reduced when a species has fewer different alleles

Question 5

What are benefits of genetic diversity

Answer 5

The greater the diversity the more likely that the individuals of a species will survive an environmental change as wider range of allelebprovide wider range of characteristics that may be suited to new enviroment thus it allows natural selection

Question 6

Why aren’t all alleles passes on

Answer 6

Only certain individuals are reproductively successful and so pass on allele

Question 7

Describe natural selection

Answer 7

The differences between the reproductive success of individuals
Within a population there will be a gene pool containing a wide variety of alleles
Random mutation within allele may make new allel
This new allele may be advantageous over other alleles in a population so they are more likely to survive and reproduce gain resources grow rapidly breed and producing more offsprings
Only those who reproduce will pass on allele to offspring
So new advantages allele will be passed onto offspring they will be more likely to survive and reproduce
This will increase the number of individuals with the new advantageous allele and the non advantageous allele will decrease

Question 8

How is advantageous determined

Answer 8

Upon the environmental factors or conditions at any one time