DNA RNA Protein
20 Questions
| Total Attempts: 444
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Dna. Rna. Protein synthesis
Questions and Answers
- 1.RNA molecule that carries copies of instructions for the assembly of amino acids into proteins from DNA to the rest of the cell
- A.
TRNA
- B.
RRNA
- C.
MRNA
- 2.Process in which part of the nucleotide sequence of DNA is copied into a complementary sequence in RNA
- A.
Promoter
- B.
Transcription
- C.
Introns
- 3.Enzyme similar to DNA polymerase that binds to DNA and separates the DNA strands during transcription
- A.
DNA polymerase
- B.
RNA polymerase
- C.
Exons
- 4.Region of DNA that indicates to an enzyme where to bind to make RNA
- A.
Translation
- B.
Promoter
- C.
Codon
- 5.Sequences of DNA that is not involved in coding for a protein
- A.
Introns
- B.
Exons
- C.
Codons
- 6.Expressed sequence of DNA; codes for a protein. involved in protein coding
- A.
Codon
- B.
Nitrogen
- C.
Exons
- 7.Three-nucleotide sequence on messenger RNA that codes for a single amino acid
- A.
Codon
- B.
DNA
- C.
RNA
- 8.Process of decoding a mRNA message into a polypeptide chain
- A.
Transcription
- B.
Translation
- C.
Protein synthesis
- 9.Group of three bases on a tRNA molecule that are complementary to an mRNA codon
- A.
Promoter
- B.
DNA
- C.
Anticodon
- 10.Type of RNA that makes up the major part of ribosomes
- A.
MRNA
- B.
TRNA
- C.
RRNA
- 11.Type of RNA molecule that transfers amino acids to ribosomes during protein synthesis
- A.
MRNA
- B.
TRNA
- C.
RRNA
- 12.Sequence of DNA that codes for a protein and thus determines a trait
- A.
RNA
- B.
Codon
- C.
Genes
- 13.Change in a DNA sequence that affects genetic information
- A.
Genes
- B.
Mutation
- C.
Point mutation
- 14.Gene mutation involving changes in one or a few nucleotides
- A.
Mutation
- B.
Point mutation
- C.
Frameshift mutation
- 15.Mutation that shifts the “reading” frame of the genetic message by inserting or deleting a nucleotide
- A.
Mutation
- B.
Polyploidy
- C.
Frameshift mutation
- 16.Condition in which an organism has extra sets of chromosomes
- A.
Polyploid
- B.
Polypeptide
- C.
Deoxyribose
- 17.Group of genes operating together
- A.
Operator
- B.
Operon
- C.
Hox genes
- 18.Region of chromosome in an operon to which the repressor binds when the operon is “turned off"
- A.
Operon
- B.
Operator
- C.
Differentiation
- 19.Process in which cells become specialized in structure and function
- A.
Hox genes
- B.
Differentiation
- C.
Operator
- 20.Series of genes that controls the differentiation of cells and tissues in an embryo
- A.
Differentiation
- B.
Hox genes
- C.
Operon
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