#Question id: 10682
#Unit 10. Ecological Principles
if 30 individuals of species 2 take up the same amount of resources as 5 individual of species 1 then the per capita competitive effects on species 1 of species 2 is
#Question id: 20327
#Unit 4. Cell Communication and Cell Signaling
#Question id: 5664
#Unit 5. Developmental Biology
Following statements are regarding to gamete fusion and the prevention of polyspermy in mammals.
A. In mammals, it is not the tip of the sperm head that makes contact with the egg but the side of the sperm head.
B. The junction between the inner acrosomal membrane and the sperm cell membrane is called the acrosomal region, and this is where membrane fusion between sperm and egg begins.
C. Sperm-egg fusion appears to involve several proteins, two of which are Izumo, in the oocyte membrane, and Juno, in the acrosomal membrane.
D. These fusion proteins bind together and appear to recruit other proteins to make an adhesion and fusion complex.
Which of the following statements are correct?
#Question id: 4791
#Unit 8. Inheritance Biology
Body color in mice, YY is a recessive lethal, Yy yellow, yy gray and hair type straight is dominant over fuzzy. A geneticist crosses two yellow mice with heterozygous straight hair. Which the observe ratio is of obtains following progeny?
#Question id: 10489
#Unit 6. System Physiology – Plant
Malate anions, by contrast, are synthesized in the guard cell cytosol, in a metabolic pathway that uses carbon skeletons generated by