Apopulation of 1,000
individuals has3 alleles with the following frequencies: p = 0.2, q
= 0.2, s =0.6. the fitness levels (survival) of genotypes are pp =
0.2, pq =0.4, ps = 0.4, qq = 1.0, qs = 0.8, ss = 0.4. after
selection, whatis likely to happen to the frequency of allele
p?
the frequencywill increase.
the frequencywill decrease.
the frequencywill remain the same.
a predictioncannot be made from the supplied
information.

What two temperature scales do scientists use

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants. d. selecting individuals at random.

Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.