Question 15 (3 points)

Microevolution is defined as __________.

Question 15 options:

	changes in the composition of the population
	changes in population size
	changes in the frequency of alleles in the gene pool
	changes in community size
	the emergence of new species

Question 16 (3 points)

What is an adaptive trait?

Question 16 options:

a)	A trait expressed when the genotype is heterozygous.

b)	A trait that allow an organism to survive in a particular environment.

c)	A trait controlled by genes located on the X or Y chromosome.

d)	A trait that is no longer used by the organism.

Question 17 (3 points)

Which of the following phases is NOT part of mitosis?

Question 17 options:

	Telophase
	Metaphase
	Prophase
	Anaphase
	S-phase

Question 18 (6 points)

Select all the correct answers that apply to this DNA sequence:

A T G G T G G A C A T T

Question 18 options:

	The result of replication of this DNA strand is T A C C A C C T G T A A
	This DNA strand contains 3 adenine bases
	The result of transcription of this DNA strand is T A C C A C C T G T A A
	This DNA strands contains the information to make 12 amino acids
	This DNA strands contains the information to make 4 amino acids
	This DNA strand is made of 12 nucleotides
	The corresponding mRNA strand to this DNA molecule is U A G G U C C T C A U U

Question 19 (3 points)

When someone is using the terms sublimation, condensation and precipitation, which of the following biogeochemical cycles are they most likely talking about?

Question 19 options:

	Water
	Sulfur
	Carbon
	Phosphorous
	Nitrogen