Paper 2: Inheritance

Question 1

Phenotype [definition]:

Answer 1

The observed characteristics due to the genotype and the environment

Question 2

Genotype [definition]:

Answer 2

The genetic combination of an organism

Question 3

Homozygous [definition]:

Answer 3

Both alleles for the gene are the same

Question 4

Heterozygous [definition]:

Answer 4

The alleles for the genes are different

Question 5

Alleles [definition]:

Answer 5

Different forms of the same gene

Question 6

Gamete:

Answer 6

Sex cells- Carries one allele of the gene

Question 7

What is the ratio of two heterozygous characteristics in a dihybrid cross?

Answer 7

9:3:3:1

Question 8

Co-dominance [definition]:

Answer 8

Where each allele/ feature is equally dominant

Question 9

In a co-dominant gene both alleles are…

Answer 9

Capital

Question 10

Epsitasis [definition]:

Answer 10

When the effect of one gene is dependent on the presence of another gene