The combined sizes of prokaryotic and eukaryotic ribosomes are
a. the same.
b. 30S and 50S, respectively.
c. 40S and 60S, respectively.
d. 70S and 80S, respectively.
Ans: d. 70S and 80S, respectively.
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Stable isotope probing (SIP) is a method that
A) causes cells that hybridize with a fluorescent probe to fluoresce under UV light. B) compares the isotopic ratios of different compounds in the environment to determine whether they are of biological or geological origin. C) uses substrates containing heavy isotopes to label the DNA of organisms that use those substrates. D) compares the transcription of specific isotope labeled genes under different conditions.
Slow-growing NTM whose colonies produce no pigment, whether they are grown in the dark or the light, are referred to as:
a. scotochromogens. b. photochromogens. c. nonphotochromogens. d. chromogenicums.
Cats, dogs, and fish are consumers that have the ability to move actively from one place to another. These organisms
belong to the ____ kingdom
a. Animalia b. Bacteria c. Protist d. Fungi e. Plantae
Which of the following foods contains the
greatest amounts of complex carbohydrates?
a. bananas b. rice c. broccoli d. apples e. beans