Question

Biology question DNA part 2

6. Which is the difference between microevolution and macroevolution?

Select one:

a. microevolution affects bacteria and macroevolution affects larger organisms.

b. microevolution happens slowly and macroevolution happens quickly.

c. microevolution affects up to 100 base pairs and macroevolution affects chromosomes.

d. microevolutionary changes are small, and macroevolutionary changes are large.

7. Darwin bred pigeons to have particular traits. Today people breed dogs, cats, horses, and other animals for the same reason. These activities illustrate:

Select one:

a. negative selection.

b. positive selection.

c. artificial selection.

d. veterinary selection.

8. A 3.6 million partial skeleton, named Lucy, represents an individual who was a member of:

Select one:

a. Australopithecus afarensis

b. Homo erectus

c. Dryopithecus

d. Homo habilis

9. Natural selection has fueled the rise in MRSA (methicillin-resistant Staphylococcus aureus) infection by:

Select one:

a. enabling people to use a greater variety of antibiotic drugs to fight the infection.

b. inactivating a greater variety of antibiotic drugs.

c. enabling certain bacterial variants to survive in the presence of many antibiotic drugs.

d. killing all bacteria exposed to antibiotics, including helpful ones.

10. The allele T is in 85 percent of a population (p=0.85). According to the Hardy-Weinberg equation, what percentage of the population will have the recessive allele t (q=?)?

Select one:

a. 15%

b. 50%

c. 25%

d. 85%

Answer 1