A diploid cell only has two copies of most genes, but can make hundreds of copies of a protein from those genes per second because
A. the DNA can replicate during transcription, producing double-sided mRNA to accelerate the translation process.
B. transcription can repeat and make multiple mRNA copies of genes, and multiple ribosomes can translate the same mRNA.
C. multiple ribosomes can actively attach to the template DNA and conduct translation immediately after transcription.
D. multiple copies of the same mRNA can be produced with multiple promoter sequences to simultaneously initiate multiple ribosomes.
E. multiple codons can encode for the same amino acid, allowing different versions of the protein to be made.
B. transcription can repeat and make multiple mRNA copies of genes, and multiple ribosomes can translate the same mRNA.
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During his trip on the Beagle, Darwin found that ________.
A. plants and animals living in temperate regions were most similar to each other, regardless of the continent on which they were found B. plants and animals were similar on every continent and in every type of region C. fossils found on a particular continent were clearly not related to the plants and animals living on that continent today D. plants and animals living on a continent seemed more closely related to each other than to plants and animals living in similar regions on other continents
The number of species belonging to a particular group of animals (such as birds, bats, or lizards) may increase with greater island size because larger islands have greater habitat diversity.
a. true b. false
Through chemical digestion, nucleic acids are broken down into
A) fatty acids. B) monosaccharides. C) nucleotides. D) amino acids.