Test crosses, Incomplete Dominence and Co-dominence

Question 1

Test cross

Answer 1

determines if a dominant trait is homozygous or heterozygous

Question 2

We test cross a…

Answer 2

unknown genotype with a homozygous recessive

Question 3

After doing a test cross and you get all purple phenotypes then the part is homozygous dominant. If there are 2 different colours then the parent is heterozygous

Question 4

Incomplete dominance

Answer 4

a situation where neither allele is dominant resulting in a blend of both parents traits

Ex: red parent and white parent makes pink offspring

Question 5

• The gene C is for colour
• the alleles are red(R) and white(w)
• for incomplete dominance, you combine the notations

Question 6

Codominance

Answer 6

results in a phenotype that shows both traits of allele pair

Ex: Black and white result in black and white specks