The ability to change phenotype in response to local environmental conditions is called
A) genetic drift.
B) mutation.
C) alternation of generations.
D) phenotypic plasticity.
Answer: D
You might also like to view...
Answer the following statements true (T) or false (F)
1. Protists are only capable of asexual reproduction. 2. DNA analysis shows that fungi are more genetically related to plants than animals. 3. As plants evolved to grow taller, their stems had to become more rigid. 4. Plants exhibit a final body form, like animals, which they keep until they die. 5. All fruits are derived from the ovary of an angiosperm.
If you found a mutation, involving the loss of two bases, which was present in humans living on all four continents which you could test but was absent in close relatives such as gorillas and chimps, what would this imply?
A. Two bases were actually insertions in the nonhuman primates. B. Deletion arose before the branch between humans and nonhuman primates. C. Deletion arose in multiple nonhuman primates. D. Deletion arose at least six times in different human populations. E. Deletion arose after the branch between humans and nonhuman primates.
A theory and a hypothesis are different in that
A. you must have a theory before you can form a hypothesis. B. a theory is developed as a result of broad agreement among scientists and a hypothesis is a much less substantiated idea. C. a theory is much easier to disprove than a hypothesis. D. a theory can never be disproved while a hypothesis can.
What had to occur in the B. megaterium cultures exposed to UV light for extended periods of time, in order for growth to appear on the plates after 24-48 hours?
A) Thymine dimers must not have formed during the exposure to UV light. B) Endospores must have entered the vegetative cycle. C) Bacterial cells must have been resistant to UV light