#Question id: 32243
#Unit 2. Cellular Organization
#Question id: 29483
#Unit 6. System Physiology – Plant
Which of the following are defined as compounds that have biological activities similar to those of trans-zeatin
#Question id: 4076
#Unit 3. Fundamental Processes
RNA-binding proteins
a. can be identified by chromatography of UV irradiated nuclear extracts over oligo-dT columns.
b. can be identified by sequence homology to known RNA-binding domains.
c. have a conserved structure as seen by X-ray crystallographic analysis.
d. alter the secondary structure of pre-mRNAs, which decreases interactions with other RNAs or proteins.
e. always remain in the nucleus.
#Question id: 5216
#Unit 11. Evolution and Behavior
Alu elements account for about 10% of the human genome. What does this mean?
#Question id: 3398
#Unit 11. Evolution and Behavior
Genetic drift in a small population for multiple generations can significantly affect the composition of a population’s gene pool. Following some observation are given for reason of Genetic drift?
A) Small populations are threatened by a loss of genetic variability. This loss may be caused by inbreeding, genetic drift, and limited mating.
B) Sampling error can arise is through the founder effect, which is due to the limited matting within population
C) Genetic drift arises is through a genetic bottleneck, which develops when a population undergoes a drastic reduction in population size.
D) Variance in allele frequency due to genetic drift will be maximal when one allele is very rare and the population size is small.
Which of the above observation are true?