#Question id: 1543
#Human Biology
Effector cytokines of TH 1 cells?
#Question id: 5323
#Human Biology
An X-linked recessive gene produces red-green color blindness in humans. A woman with normal color vision whose father was color-blind marries a color-blind man. What is the probability that their son will be color-blind?
#Question id: 10925
#Human Biology
During the second trimester of pregnancy, where is the predominant site of red blood cell production?
#Question id: 5324
#Human Biology
In eusocial insects, males develop from unfertilized eggs while females develop from fertilized eggs. The ultimate consequence of this difference is that
#Question id: 10926
#Human Biology
Following a blood donation, red cell production begins to increase in
#Question id: 5325
#Human Biology
Cystic fibrosis is caused by a recessive lethal gene and can be detected by an excess concentration of chloride in sweat. A normal man whose sister has cystic fibrosis, his normal wife whose brother has cystic fibrosis. What is chance of cystic fibrosis in their child?