Mechanisms of Evolution True or False

1.	Which of the following does NOT negate the Hardy-Weinberg principle? -> Random mating True False
2.	Which type of speciation occurs when an organism contains more than two copies of chromosomes? -> Sympatric True False
3.	The mean of a population phenotype for neck length in giraffes is skewed towards taller necks due to an increase in tree height. This is best described by -> Stabilizing selection True False
4.	Selection occurring when two extremes of a population phenotype are favored is -> Disruptive True False
5.	A trait that is influenced by many genes can be described as -> Polyploidy True False
6.	Two different species of beetles are unable to mate. This is a -> Natural selection True False
7.	In a population of tulips, two different alleles exist for flower color. One codes for yellow and the other codes for red. The allelic frequency of the yellow allele is 60%. What percent of the population is homozygous for the red allele? -> 16% True False
8.	Which of the following situations would be an example that could result in gene flow? -> Two populations of the same bee species feeding from the same population of flowers True False
9.	Which of the following best describes evolution caused by allelic changes in DNA sequence? -> Adaptive mutations True False
10.	Natural selection occurring when a small group of individuals start a new population is known as -> Bottleneck effect True False

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