genes and inheritance

Question 1

Genotype

Answer 1

The alleles a person has (the genetic material)

Question 2

Phenotype

Answer 2

The physical expression of the genotype

Question 3

Dominant

Answer 3

An alleles who’s characteristic appears in one to type even where there’s only one copy present

Question 4

Recessive

Answer 4

An allele the how characteristic only appears if two copies are present

Question 5

What do mutations change?

Answer 5

They Change the base sequence of DNA

Question 6

Why is the order of DNA bases important? And what happens if mutation occurs?

Answer 6

The order of bases determine the order of amino acids in a particular protein. If mutation occurs the primary structure of the protein it codes for could be altered, this changes the final 3D shape of the protein so it doesn’t function properly.

Question 7

What is mono hybrid used for?

Answer 7

It can be used to predict the genotype and phenotypes of the offspring

Question 8

When will a person have the CF disorder ?

Answer 8

If they are homozygous for the allele, as they would have inherited one recessive allele from each parent.

Question 9

Describe a allele

Answer 9

A different version of a gene. Different versions have slightly different base sequences which code for the different versions of the same characteristics