Lecture 8

Question 1

Y linked means?

Answer 1

only males affected, no homologous locus on the X

Question 2

Recessive inheritence

Answer 2

Autosomal 
X-linked
- more males affected than females
- No father to son transmission
- Affected female has affected father
- Affected female will have all affected sons

Question 3

Dominant inheritence

Answer 3

Autosomal 
- one parents needs it
- no skipping
- father can pass to daughter and son
X-linked
- father passes to all daughters

Question 4

Sex-limited/influenced on a pedigree

Answer 4

rare trait,

only one sex affected

Question 5

Genetic hetergeneity

Answer 5

A phenotype can be the result of mutation in different genes. (same phenotype, differnet genes) When recessive doesn’t work