allele frequency and genetic drift

• what two types of alleles will be found in a gene

  a dominant and recessive
• what is the frequency of dominant allele + frequency of recessive allele equal to

  1
• what is meant by heterzygous

  different alleles
• what is meant by homozygouse

  same alleles
• what two processes can lead to an alteration in variation of allele frequencies

  selection pressures and genetic drift
• what is genetic drift

  random change in allele frequency
• if there is a population of 65 organisms how many alleles are there

  130
• if there are 50 organisms who are heterozygous how many total alleles are there and how many of those are domiannt

  100 total and 50 dominant
• if an allele is at risk of being lost permanently what size population would increase that chance, small or big and why

  small because a smaller amount of organisms would have to die off