patterns of inheritance

Question 1

gene

Answer 1

sequence of bases of a DNA mol

Question 2

allele

Answer 2

different versions of a gene

Question 3

genotype

Answer 3

alleles an organism has

Question 4

phenotype

Answer 4

characteristics alleles produced

Question 5

dominant

Answer 5

allele appears in characteristic even if only 1 present

Question 6

codominant

Answer 6

both alleles expressed in phenotype

Question 7

carrier

Answer 7

carrying an allele that is not expressed

Question 8

name examples of codominant alleles

Answer 8

sickle cell anaemia
homozygous for sickle cell anaemia- all blood cells are sickle shapes
heterozygous- some blood cells are sickle shaped
blood type

Question 9

define dihybrid inheritance

Answer 9

inheritance of 2 characteristic controlled by different genes

Question 10

what does sex linked mean

Answer 10

alleles on same sex chromosomes

Question 11

what is an autosomes

Answer 11

non sex chromosome

Question 12

what is epistasis

Answer 12

alleles block expression of alleles on other genes

Question 13

how would you carry out a chi-squared test

Answer 13

predict expected result from theory
make null hypothesis
x2= (O=E)2/E
x2> critical to be significant