17.3- Genetics and society

Question 1

what is a pedigree

Answer 1

a chart showing how traits are passed through a family over many generations

Question 2

Autosomal Dominant inheriance=

Answer 2

inheritance of dominant traits found on the autosomes

Question 3

autosomal dominant inheritance traits (3)

Answer 3

• heterozygotes are affected
• traits don’t skip generations (must have an affected parent)
• if a recessive phenotype appears, the parents must be heterozygotes

Question 4

autosomal recessive inheritance=

Answer 4

inheritance of recessive traits found on autosomes

Question 5

autosomal recessive inheritance traits ()

Answer 5

• traits often skip generations
• affected c children don’t necessarily have an affected parent
• unaffected parents of infected children must be heterozygotes
• 2 affected parents= all kids have it

Question 6

sex linked inheritance=

Answer 6

inheritance of dominant and recessive traits on usually the X chromosome

Question 7

trends and patterns of x-linked recessive (4)

Answer 7

• males are affected more than females
• diseases may skip generations
• no father to son transmission
• daughters of affected fathers are either carrieers or infected

Question 8

Y linked transmission is exclusively

Answer 8

father to son