Independent assortment, sex-linked genes

Question 1

Define Mendel’s second law (independent assortment)

Answer 1

When gametes are formed, the alleles of one gene segregate independently of the alleles of another gene

Question 2

Describe the exception to Mendel’s second law (genetic linkage)

Answer 2

Linkage is the exception to the Law of Independent Assortment. Disophi Fly lab

Genes that are located close together on the same chromosome show linkage rather than independent assortment

Question 3

Define chromosomal crossing over

Answer 3

Crossing-over involves the breaking and rejoining of DNA

Genes on the same chromosome can be separated by crossing-over

Question 4

Define X-linkage

Answer 4

Genes that are on sex chromosomes are called sex-linked genes