Crick and his colleagues proposed that the genetic code consists of a series of blocks of information, each corresponding to one amino acid in an encoded protein. What were these blocks of information called?
A. alleles
B. codons
C. polypeptides
D. genes
Answer: B
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Chemical reactions involving ________ have been proposed as energy-yielding reactions for primitive organisms
A) Fe, O2, and H2 B) S, O2, and H2 C) S, and O2 D) S, and H2
Please match the primary categories of metabolism with the statements that most accurately describe them.
Anabolism A) Larger molecules are broken down into smaller molecules B) Larger molecules are built from smaller molecules C) All of the chemical reactions that occur in a cell
Multiprotein complexes known as ________ minimize diffusion distances and facilitate electron flow between electron transport complexes
Fill in the blank with correct word.
An entire cell cycle can be completed in about ________
A) 1 to 2 hours B) 24 hours C) 48 hours D) 1 week