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-Molecular Genetics-

QuestionAnswer
Wave lengths in the electromagnetic spectrum that are mutagenic are absorbed by DNA.
Which of the following DNA base sequences is complementary to this base sequence: ACGGATTAG TGCCTAATC
Which of the following would represent a mutation? a change in the base sequence of DNA.
A change in which of the following would result in a mutation? all of the above
The production of a protein from mRNA is called ______. translation.
Which of the following does NOT occur in DNA replication? The original double helix degenerate
The role of mRNA is to: carry the genetic instructions to the cytoplasm.
Transcription refers to mRNA synthesis from DNA.
Which of the following molecules has an amino acid attached to it? tRNA
Codons may do all of the above.
When a DNA molecule replicates, the resulting DNA molecules are correctly described by which of the following? Each new DNA molecule contains one old strand and one new strand.
How many amino acids are coded for in this mRNA sequence: GGUACCUUUACU 4
Thirty percent of the bases in DNA extracted from a prokaryotic cell is adenine. What percentage of cytosine is present in this DNA? 20
Which of the following is the role of the structural genes in an inducible enzyme system? to code for proteins that metabolize an inducer substance
Substances that cause cells to increase production of an enzyme (or group of enzymes ) are know as inducers
An operon is most closely associated with transcription
________________ are organic molecules that have the function of starting and regulating chemical reactions. enzymes
Amino acids are the building blocks of: proteins
There are ________ different kinds of amino acids. 20
he largest molecules in our bodies are: nucleic acids
Which of the following statements is true? DNA molecules are in the shape of a double helix.
The human body is composed mostly of: oxygen, nitrogen, hydrogen, and carbon
Which of the following statements is true about DNA? At the beginning of protein synthesis, a section of a DNA molecule unwinds and unzips.
Which of the following occurs at the ribosomes? Proteins are produced there.
Each tRNA anticodon has three bases. The three base combinations are codes for attracting specific kinds of: amino acids.
Created by: lydiajanetaylor
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