Answer the following statements true (T) or false (F)
1. The modification of a limb that was used for walking in a pre-existing ancestor to one that is used as a wing for a species today is called proteomics.
2. A bacterial infection such as pneumonia is most likely caused by organisms derived from the animal kingdom.
3. All genetic mutations are harmful to an organism.
4. Vertical evolution, whereby living organisms evolve from a common ancestor ("tree of life"), is the only mechanism of evolution on Earth.
1. FALSE
2. FALSE
3. FALSE
4. FALSE
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Which of these pairs does not correctly match a carbohydrate with its function?
A. Chitin provides an exoskeleton for insects. B. Glycogen is the storage form of energy in animals. C. Starch provides long-term energy. D. Cellulose provides structural support for human hair. E. Starch is the storage form of energy in plants.
How many proteins are specified in the genetic code?
a. 4 b. 5 c. 20 d. 64
An experimental chemical has been shown to selectively cleave phosphodiester bonds. How would this affect a virus?
A. Fragment the genome B. Digest the capsid C. Dissociate the envelope D. Hydrolyze the protein coating E. Alter the host binding site
A pea plant with red flowers is test crossed; half of the resulting progeny have red flowers, whereas the other half have white flowers. The genotype of the test-crossed parent was
A) RR. B) rr. C) either RR or Rr. D) Rr.