#Question id: 11647
#XL - T Zoology
After menopause, hormone replacement therapy with estrogen-like compounds is effective in preventing the progression of osteoporosis. What is the mechanism of their protective effect?
#Question id: 5285
#XL - S Microbiology
A transformation experiment is carried out using donor DNA that is A+B+C+ and a recipient that is A-B- C-. A+ transformants are selected and tested further. Of these, 64% are B+ and none are C+. Also, B+ are selected, and 8% are also C+. What is the gene order
#Question id: 576
#XL - Q Biochemistry
The hydrophobic cleft in globular proteins which bind substrate molecules is called the ________.
#Question id: 4611
#XL - S Microbiology
Given what we know about evolutionary biology, we expect to find the largest number of endemic species in which of the following geological features, which have existed for at least a few million years?
#Question id: 5325
#XL - T Zoology
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?