Which of the following observations did not influence Darwin's later thoughts about evolution?
a. The discovery of fossils that resembled extant organisms in the same region.
b. The observation that animals from similar habitats in South America and Europe were
very different.
c. A great variety of species exist across the globe.
d. Species on islands differed from species on the mainland closest to the island.
e. North American and South American species were more similar to each other than
European and African species.
E
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The ability of TCÂ cells to initiate apoptosis in virally-infected cells and cancer cells is dependent on their ability to produce ________ and ________; proteins that punch holes in the target cell membrane.
A. antibodies; interferons B. interleukin-1; interleukin-2 C. interferon; interleukins D. perforin; granzyme
A large molecule whose subunits consist of a sugar and a nitrogenous base is called a ____
a. nucleoside b. nucleotide c. nucleic acid d. nucleosome e. nuclear unit
True or False: To transcribe something is to make an identical copy, i.e., if the original is DNA, the transcribed copy is also DNA.
Answer the following statement true (T) or false (F)
Which of the below is not a protease involved in matrix degradation.
a. Serine b. Aspartyl c. Metalloproteinase d. Threonine