Which of the following scenarios fits the definition of macroevolution?
a. The divergence of the eastern and western meadowlark birds into two different species
b. The increase in the frequency of polydactyly (more than 10 fingers) among the Pennsylvania Amish population
c. The general increase in height of the human species over the last 200 years
d. The increase in milk production of cows in the early 1900s
e. The changes in wing color of the peppered moth over the last 100 years
Answer: a. The divergence of the eastern and western meadowlark birds into two different species
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It is a fact that enzymes are highly specific and will only catalyze one or a few reactions. Can you think of a benefit
that is derived from such specificity? (i.e., What would happen if most biochemical reactions were catalyzed by the same enzyme?) What will be an ideal response?
In a comparison of birds and mammals, having four limbs is _____
A) a shared ancestral character B) a shared derived character C) a character useful for distinguishing birds from mammals D) an example of analogy rather than homology
__________ contains the codes for the sequence of amino acids in protein.
A) Messenger RNA B) Transfer RNA C) Ribosomal RNA D) Micro RNA
Which of the following statements regarding the Golgi apparatus is false?
A) The Golgi apparatus works closely with the endoplasmic reticulum. B) The Golgi apparatus serves as a molecular warehouse and finishing factory. C) The Golgi apparatus decreases in size when a cell increases its protein production. D) The Golgi apparatus modifies chemicals received from the endoplasmic reticulum.