1. not expressed
2. rarely expressed
3. expressed only in homozygous and hemizygous state
expressed only in homozygous and hemizygous state
1. ABC
2. ACB
3. BCA
4. BAC
BAC
1. turner's syndrome
2. down's syndrome
3. klinefelter's syndrome
4. addison's syndrome
klinefelter's syndrome
1. turner's syndrome
2. klinefelter's syndrome
3. down's syndrome
4. SARS
klinefelter's syndrome
1. T.H. Moran
2. Wal deyer
3. Calvin B. Bridges
4. Strasburger
Calvin B. Bridges
1. AABB
2. AaBb
3. aabb
4. aaBB
aabb
1. may be colorblind or may be of normal vision
2. must be colorblind
3. must be normal color vision
4. will be partially colorblind since he is heterozygous for the colorblind mutant allele
may be colorblind or may be of normal vision
1. cystic fibrosis
2. thalassaemia
3. haemophilia
4. cretinism
cretinism
1. a greater proportion of girls die in infancy
2. this disease is due to an Y-linked recessive mutation
3. this disease is due to an X-linked recessive mutation
4. this disease is due to an X-linked dominant mutation
this disease is due to an X-linked recessive mutation
1. super femaleness
2. triploidy
3. turner's syndrome
4. down's syndrome
down's syndrome