Mendellian Genetics

Question 1

What is blending theory?

Answer 1

Father’s info blends with mother’s and is mixed and forever changed.

Question 2

What is particulate theory?

Answer 2

Each determinant has a distinct physical nature and will remain intact after fertilization and can be passed on.

Question 3

Advantages of using peas?

Answer 3

Easy controlled fertilization
Discrete well defined traits
Pure breeding strains
Each plan produces many seeds in pods

Question 4

Monohybrid cross of heterozygous peas produces what ratio?

Answer 4

3:1 of dominant traits to recessive

Question 5

Law of segregation

Answer 5

2 alleles for each trait segregate during gametes formation then unite at random at fertilization

Question 6

Dihybrid cross of heterozygous peas with two different traits ratio?

Answer 6

9:3:3:1

Question 7

Law of independent assortment

Answer 7

During gamete formation different pairs of alleles segregate/assortment independently of each other

Question 8

When does the law of independent assortment not apply?

Answer 8

When genes are linked on the same chromosome