Which of the following would be an example of directional selection?
A. Mutations change the gene frequency of a population.
B. All of the plants on an island are killed by a volcanic eruption.
C. In a forest, the taller oak trees produce twice as many acorns as shorter ones.
D. Mice that were painted with a white stripe by biologists were eaten by predators more often than those that were not painted
C. In a forest, the taller oak trees produce twice as many acorns as shorter ones.
You might also like to view...
Sexual dimorphism means that ____________________
a. males are always larger than females b. females are always larger than males c. there is a size difference between males and females d. males tend to be more “showy” than females
Using the table, which of the viruses has linear, single-stranded RNA?
a. herpesvirus
b. influenza virus
c. retrovirus
d. bacteriophages
The ___ are the major blood vessels transporting blood to the kidneys.
Fill in the blank(s) with the appropriate word(s).
In what way are specific DNA sequences of the template amplified in the polymerase chain reaction? In other words, how does one target the target?
What will be an ideal response?