Describe the direction of information flow in living systems. Use appropriate, scientific terms in your description
What will be an ideal response?
DNA is replicated and passed to offspring through a variety of reproductive processes. Information contained in the base sequences of DNA is transcribed into a variety of RNAs. Certain RNAs (tRNA) carry amino acids to the site of translation where proteins are assembled. Other RNAs (mRNA and rRNA) provide a mechanism for ordering the sequence of amino acids in proteins.
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. As of 2011, how many species were listed in the IUCN’s Red List of endangered species?
a. 610,000 b. 6100 c. 61,000 d. 6,100,000
The end result of the process in Figure 20-1 is:
a. sympatric speciation.
b. allopolyploidy.
c. hybridization.
d. rapid speciation.
e. All responses apply
In performing a Gram's staining techniques, the decolorization reagent is
A. A mixture of acetone and alcohol B. A mixture of different alcohols C. A mixture of acid and alcohol D. A mixture of acetone and ether E. none of the above
Which of the following statements about vertebrate eyes is true?
A. Most predators have monocular vision. B. Most predators have eyes on the sides of their heads. C. Binocular vision helps prey animals scan their surroundings for predators. D. Most prey animals have eyes on the sides of their head and monocular vision. E. Monocular vision allows for better depth perception.