Introduction Answers

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What is genetics?

the study of DNA

the fundamental unit of heredity

the study of inheritance

the study of genes and heredity

Which of following statements are true? Check all that apply.

A nucleotide is a chain of DNA molecules.

DNA is a chain of nucleotides.

Nucleotides act as “letters” in the genetic code.

DNA molecules act as “letters” in the genetic code.

Which of the following statements is true?

Genotype codes for phenotype.

Phenotype codes for genotype.

An organism’s genotype is the set of its physical traits.

An organism’s phenotype is the set of its genes.

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