Bio lesson 1.6 key terms

Question 1

What did Mendel find?

Answer 1

Each parent contributes one allele during fertilization

The dominant allele is always expressed when the recessive allele is present

Each pair of alleles segregate independently during the formation of gametes

Question 2

Define Monohybrid Cross

Answer 2

This is a cross that involves one trait (one gene i.e. eye colour) – usually with 2 alleles (i.e. blue, brown)

Question 3

What are four different reasons that
Mendel used pea plants when studying traits?

Answer 3

Reproduce quickly, Cheap, Sexually reproducing ⇒ pollination, Traits are expressed 2 ways

Question 4

Steps for punnett square

Answer 4

1) Parents
2) Alleles / Gametes
3) Punnett square
4) Genotype
5) Phenotype