#Question id: 11647
#Unit 7. System Physiology – Animal
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: 24664
#Unit 2. Cellular Organization
Which of the following membrane protein do not bind with lipid and, once purified, behave like water-soluble proteins?
#Question id: 28373
#Unit 5. Developmental Biology
A free Dorsal protein which are responsible for ventralization of the cell by moving into the nucleus, for these ventral cell fate running a cascade from Ventralizes vitelline membrane, in this cascade other such proteins are the part of ventral cell fate, except____
#Question id: 11884
#General Aptitude
#Question id: 4742
#Unit 8. Inheritance Biology
In birds, sex is determined by a ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female?