You go for another hike in the forest and wind up back at the same population of 100 flowering plants. You notice that one individual of the population grows in full shade, and all the others grow in at least partial sun
You take a leaf sample from the individual in the
shade, sequence its DNA, and notice that the individual is heterozygous. There is a mutation
in the LLT gene (the mutant is designated LLT-s).
t or f: This population can evolve.
t or f: This population can only evolve through genetic drift.
t or f: This population can only evolve through natural selection.
What will be an ideal response?
t or f: This population can evolve.
t or f: This population can only evolve through genetic drift.
t or f: This population can only evolve through natural selection.
You might also like to view...
The idea that evolution proceeds with long periods of stasis with relatively brief bursts of fast evolutionary change is
A. temporal isolation. B. mechanical isolation. C. gradualism. D. punctuated equilibrium. E. hybrid breakdown.
Which of the following characteristics of capillaries is most directly related to their function of molecular exchange?
A. Capillaries lack muscles. B. Capillaries are located between arteries and veins. C. Capillaries allow blood to flow through them very rapidly. D. Capillaries have extremely thin walls.
At one point in human development, tissue that connected the fingers and the hand appeared to be "webbed." Enzymes eventually destroy the cells of the webbing and the fingers separate. Where are these enzymes probably liberated from?
a. from the nucleus b. from the smooth endoplasmic reticulum c. from the chromosomes d. from the lysosomes
Which statement is not true about chronic persistent viral infections?
A) May involve integration of the virus into the host cell DNA to form a provirus. B) May involve periods of flare-up where the virus is actively replicating alternating with periods of dormancy. C) Small numbers of virions may be produced and released from host cells during the quiet periods. D) The immune system fails to clear the infection. E) A period of quiet infection where the host is asymptomatic is followed by a period of active viral replication.