Each nucleotide triplet in mRNA that specifies a particular amino acid is called a(n)
A.) peptide bond
B.) codon
C.) anticodon
D.) helicase
Ans: B.) codon
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Who developed the two-part naming system scientists use today to classify newly found organisms?
a. Charles Darwin b. Carolus Linnaeus c. Aristotle
d. Alexander von Humboldt e. Ernst Mayer
Within a landscape mosaic, patches
A) are composed of relatively heterogeneous communities. B) typically lack a distinct boundary. C) tend to be similar in size. D) tend to vary in shape.
DNA replication occurs in the ________ of the cell cycle
Fill in the blank(s) with correct word
Which of the following statements about the nucleus is not true?
A. The nucleus usually contains a nucleolus region which is where ribosome assembly begins B. The nucleus is the site of protein assembly C. The nucleus stores the coded instructions for making the cell's proteins D. The nucleus is surrounded by a nuclear envelope that lets materials in and out