Light behaves not only as waves, but also as particles called:a
electrons.
b. protons.
c. photons.
d. radiation.
e. neutrons
C
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During protein synthesis, genes in DNA are copied, making ________ RNA.
Fill in the blank(s) with the appropriate word(s).
Please identify the inversion in the following figure
a. process A c. process C b. process B d. process D
How is DNA introduced into plants using the Ti plasmid?
a. The gene of interest remains in the Ti plasmid after the plasmid has transformed the plant, and the gene is expressed in the plant. b. The Ti plasmid inserts the gene of interest directly into the plant's nuclear DNA. c. The entire Ti plasmid including the gene of interest is inserted into the plant’s nuclear DNA. d. The Ti plasmid inserts the foreign DNA into the plant's chloroplast DNA. e. The Ti plasmid inserts the foreign DNA into the plant's mitochondrial DNA.
Your textbook authors make the claim that "sympatric species with matching chromosome numbers are rare." Why is this?
A) because allopatric speciation is far more common B) because sympatric speciation has only been hypothesized but not documented C) because coexisting populations need a boundary to gene flow before divergence can occur, and differences in chromosome numbers provide this D) because macroevolution is just a theory