Which of the following best describes this selection?
a) a cadenza is entirely lacking
b) a cadenza is indicated but, as was the custom, the soloist is expected to improvise it
c) a cadenza is indicateda bit unexpectedly, it is written out by the composer
d) a cadenza is include but, rather curiously, it includes a notated part for timpani
Question 2
Throughout this selection how is the solo instrument instructed to play?
a) with mute
b) with the top string tuned in a non-traditional manner
c) in the traditional manner
d) una corda, that is with one string
Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester
Mutation and selection diagram
Positive and negative selection during T-cell development.
Natural selection acts on genetic variation
Directional selection
A Model of Directional Selection against a Recessive Lethal Allele