How many prokaryotic species have been grown and studied in the laboratory

A) about 20% of the known species
B) all of them
C) none of them
D) over half of the known species
E) less than 1% of the known species


Ans: E) less than 1% of the known species

Biology & Microbiology

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A deviation like having an extra toe is considered a ____

a. genetic abnormality b. genetic disorder c. syndrome d. pedigree e. carrier

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In the mRNA codon, AGU encodes for serine (ser), GAG encodes for glutamic acid (glu), GGG encodes for glycine (gly) and UGG encodes for tryptophan (try). If an mRNA sequence was GGGGAGUGG and mutated so it now reads UGGGAGUGG, a new amino acid will replace 

A. glutamic acid. B. tryptophan. C. glycine. D. serine.

Biology & Microbiology

Would drinking a gallon of tap water, a gallon of sea water, or a gallon of beer produce the most

urine? Why?

What will be an ideal response?

Biology & Microbiology

An organic compound that provides instructions for the synthesis or production of polypeptide chains is referred to as which of the following?

A) lipids B) DNA C) ATP D) nucleotide

Biology & Microbiology