Multiple Choice
In many cases, more than one codon codes for the same amino acid. Because of this, we say that the code is __________.
15. Gene Expression
Genetic Code
Back15. Gene Expression
Genetic Code
- Multiple Choice
A particular triplet of bases in the template strand of DNA is 5′-AGT-3′. What would be the corresponding codon for the mRNA that is transcribed?
- Multiple Choice
A particular triplet of bases in the coding sequence of DNA is AAA. The anticodon on the tRNA that binds the mRNA codon is ________.
- Multiple Choice
Which of the following sequences of nucleotides are possible in the template strand of DNA that would code for the polypeptide sequence Phe–Leu–Ile–Val?
- Multiple Choice
What amino acid sequence will be generated, based on the following mRNA codon sequence? 5′–AUG–UCU–UCG–UUA–UCC–UUG–3′
- Multiple ChoiceWhich statement is true?
- Multiple ChoiceWhen RNA is being made, the RNA base __________ always pairs with the base __________ in DNA.
- Multiple ChoiceGenerally speaking, how many genetic codes are there?
- Multiple ChoiceThe number of nucleotide bases "read" together on the mRNA to designate each amino acid is __________; this unit is called a(n) __________.
- Multiple ChoiceThe codons AAA, CCC, GGG, and UUU specify the amino acids lysine, proline, glycine, and phenylalanine, respectively. If the base sequence 5′-CCCAAATTTGGG-3′ is present in the coding strand of a stretch of DNA, what polypeptide sequence would be encoded by the corresponding template strand?
- Multiple ChoiceHow many nucleotides are needed to code for a protein with 450 amino acids?
- Multiple ChoiceBacteria can transcribe and translate human genes to produce functional human proteins because __________.
- Multiple ChoiceThe mRNA codons 5′-CAA-3′ or 5′-CAG-3′ are translated as the amino acid glutamine by __________.
- Open QuestionList the order of nucleotides on the mRNA that would be transcribed from the following DNA sequence: CGATTACTTA.
- Open QuestionWhich of the following is not true of a codon?a. It may code for the same amino acid as another codon.b. It never codes for more than one amino acid.c. It extends from one end of a tRNA molecule.d. It is the basic unit of the genetic code.