8.1 Study Guide

Question 1

What is a homozygous genotype?

Answer 1

2 of the same alleles

Question 2

What is a heterozygous genotype?

Answer 2

2 different alleles

Question 3

How can a recessive trait be visible?

Answer 3

You need 2 recessive alleles to have the recessive phenotype.

Question 4

What is needed to have a dominant trait phenotype?

Answer 4

You only need 1 dominant trait allele to have a visible dominant phenotype.

Question 5

What is codominance?

Answer 5

both alleles are visible in it´s phenotype.

Question 6

What is a genotype?

Answer 6

Individual allele combination

Question 7

What is a phenotype?

Answer 7

Visible traits that the allele causes

Question 8

what is a genotypic ratio?

Answer 8

ratio of alleles

Question 9

what is a phenotypic ratio?

Answer 9

the ratio of visible traits

Question 10

What type of organism did Mandelel use in his experiments?

Answer 10

Pea Plants

Question 11

What is the P generation?

Answer 11

Parent generation, Homozygous for one trait

Question 12

What is the F1 generation?

Answer 12

4/4 Heterozygous alleles

Question 13

What is the F2 generation?

Answer 13

1/4 Dominant: 2/4 Hererozygous: 1/4 recessive