Introduction to Genetics Answers

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Which discovery is attributed to Phoebus Levene?

extraction and observation of DNA

identification of ribose and deoxyribose

recognition of RNA as DNA’s messenger

construction of an accurate DNA model

What is one benefit of mapping the human genome?

locating the chromosomal abnormalities that cause disease

having the genomes of every living individual on file

choosing the gender or intellectual ability of an unborn child

cloning the individuals that comprise a nearly extinct tribe

On an RNA molecule, which would base pair with adenine?

thymine

guanine

cytosine

uracil

Which structural characteristic is seen in RNA but not in DNA?

double strands

a single strand

chains of nucleotides

a helical shape

Which is a point mutation and not a frameshift mutation?

mutagen

insertion

deletion

silent

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