The degeneracy of the genetic code refers to the fact that
a. the code has some codons that do not specify an amino acid.
b. the code has most amino acids represented by more than one codon.
c. the code varies considerably between different organisms.
d. the code is commaless, with no indicators of spaces between codons.
e. the code varies considerably between different cell types within a multicellular organism.
B
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The following is not a heavy metal toxin:
a. DDT. b. mercury. c. lead. d. zinc. e. copper.
Cilia and flagella are most similar in
a. length. b. the kinds of cells that have them. c. the number that cells usually have. d. their internal composition and structure. e. their location along the cell's periphery
When the uterus begins to contract, it is almost time for the baby to be born.
Answer the following statement true (T) or false (F)
What is the name for a molecule that accepts hydrogen atoms and electrons that are being removed
from other molecules and transfers them to other sites for further use? a. enzyme b. coenzyme c. protein d. lipid e. steroid