Which of the following is not a good example of a housekeeping protein?
(a) DNA repair enzymes
(b) histones
(c) ATP synthase
(d) hemoglobin
(d)
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The macromolecule that can accomplish the widest range of biological functions are
A. carbohydrates. B. proteins. C. nucleic acids. D. lipids. E. glycolipids.
Matching. Choose the most appropriate response for
each statement. 1. ___ cladogenesis 2. ___ species 3. ___ isolating mechanism 4. ___ sympatric speciation 5. ___ polyploidy 6. ___ punctuation model 7. ___ mass extinction 8. ___ allopatric speciation 9. ___ adaptive radiation A. geographic separation of two populations accompanied by gradual speciation B. encompasses all of those actually or potentially interbreeding populations that are reproductively isolated from other such groups C. a population occupying the same home range undergoes reproductive isolation D. morphological changes compressed into brief periods followed by speciation E. branching pattern of speciation F. catastrophic, global loss of species G. a burst of microevolutionary activity within a lineage H. inheritance of three or more sets of chromosomes I. prevents gene flow between populations
Anti-convulsants are drugs that (A)__________ seizures. An example of a anti-convulsant is (B)____________.
a. (A) inhibit (B) GABA agonist (a chemical that binds to the receptor, and activates the cellular response) b. (A) promote (B) GABA agonist (a chemical that binds to the receptor, and activates the cellular response) c. (A) inhibits (B) GABA receptor blocker d. (A) promote (B) GABA receptor blocker
The division of the cytoplasm during cell division is referred to as:
A) cytokinesis. B) binary fission. C) Gap 1. D) replication. E) Gap 2.