15) Sex-linked traits and inheritance Flashcards
1
Q
Sex linkage
A
Phenotypic expression of an allele linked to the chromosomal sex of an individual
2
Q
Give the sex chromosomes
A
- X
- Y
- Z
3
Q
Y chromosome
A
Rarely inherit traits
4
Q
X, Z chromosomes
A
Transmit many traits
5
Q
Give the types of sex-linked traits
A
- X-linked
- Z-linked
6
Q
X-linked traits
A
- Muscular dystrophy (muscle weakness)
- Hemophilia (Xh)
- Tremor (involuntary muscle contractions)
- Nephritis (Kidney inflammation)
7
Q
Z-linked traits
A
Poultry only
- Determine sex after birth
- Feather colour and growth
