#Question id: 1772
#Unit 4. Cell Communication and Cell Signaling
J chain is present in?
#Question id: 5378
#General Aptitude
Out of 10 persons , 9 persons spent Rs 40 each of their meals .The 10th one spent Rs 18 more than the average of expenditure of all the 10 . the total money spent by all of them is
#Question id: 23142
#Unit 13. Methods in Biology
#Question id: 659
#Unit 1. Molecules and their Interaction Relevant to Biology
What does it mean to say a protein is oligomeric?
#Question id: 13142
#Unit 10. Ecological Principles
The Norway rat (Rattus Norvegicus), a widespread pest, was controlled for about a decade by the anticoagulant warfarin. This chemical substance, placed in food pellets, is absorbed by the intestinal tract and inhibits the clotting of blood. After a population decline for about 10 years, rat populations increased and stabilized. In one European population, as illustrated in the graph below, the percentage of rats resistant to warfarin has remained fairly stable over a number of years.
Resistance to warfarin is governed by a dominant autosomal gene, R. More than 15 percent of the resistant animals are heterozygous at this locus (Rr). The table below indicates the response to warfarin and relative reproductive fitness of individuals that are homozygous or heterozygous for the dominant gene (R). The RR individuals have a 20-fold increase in vitamin K requirement over individuals.
