Human-induced modifications of the nitrogen cycle can result in

TLS Online TPP Program

#Question id: 32268

#Unit 2. Cellular Organization

Which of the following NOT function as Coat-recruitment GTPases?

a. ARF

b. Sar1

c. Dynamin

d. Clathrin

TLS Online TPP Program

#Question id: 28624

#Unit 2. Cellular Organization

Ubiquitin protein-ligases APC/CCdc20  performs various functions such as  

a) Degradation of geminin

b) Degradation of securin

c) Induce degradation of B-type cyclin

d) Allows chromosomal separation

Which of the following is incorrect about APC/CCdc20

TLS Online TPP Program

#Question id: 13140

#Unit 10. Ecological Principles

One summer the moose population on Island was unusually high, and park naturalists noticed signs of malnutrition among the  adults.  The wolf population  was  fairly  low,  near  20.  That  winter,  for  the  first  time  in  many  years,  a substantial  number of seemingly healthy adult moose as well as calves and crippled animals were killed and eaten by wolves. This description is part of a general situation in which the wolf and moose populations

TLS Online TPP Program

#Question id: 19106

#Unit 8. Inheritance Biology

Assume that mating is random. First, consider an autosomal recessive disease that is usually lethal in childhood, and that has an incidence among newborns of 1/3000. What mutation rate would be required to maintain this frequency in the population? 

TLS Online TPP Program

#Question id: 33481

#Unit 2. Cellular Organization

A. In homologous introns, the pattern of divergence involves both changes in length.

B. Divergence in introns is due to deletions and insertions and base substitutions. 

C. Introns are slowly evolve while exons much more rapidly 

D. When a gene is compared among different species, there are instances where its exons are homologous but its introns have diverged so much that very little homology is retained.