AP Protein Synthesis

What is an anticodon?

• rRNA

• an amino acid

• Three nucleotide sequence found on mRNA

• Three nucleotide sequence found on tRNA

How many possible codons are there??

• 64

• 3

• 20

• Infinite

what does a promoter do?

• it allows a gene to be transcribed

• it creates a DNA segment

• it is another word for ribosomes

• it is another word for RNA

In eukaryotic cells, transcription cannot begin until 

• the two DNA strands have completely separated and exposed the promoter.

• several transcription factors have bound to the promoter.

• the 5' caps are removed from the mRNA.

• the DNA introns are removed from the template.

How many nucleotides code for each amino acid?

• 1

• 2

• 3

• 64

Exons are

• left in the mRNA

• removed from the mRNA

TRANSLATE this RNA sequence: AUGCAAUGA

• Met-Glu-Stop

• Met-His-Stop

• Thr-Glu-Stop

• Thr-Pro-Stop

The DNA sequence ATCAGCGCTGGC is part of a gene. how many amino acids are coded for by this message?

• 4

• 8

• 12

• 20

Tags

NGSS.HS-LS1-1

How many nucleotides are needed to code for a protein with 325 amino acids?

• 975

• 325

• 108

• 1200

Which of the following statements regarding the structure and function of tRNA is FALSE?

• Although each tRNA consists of a relatively short, single RNA strand, this single strand can achieve a three-dimensional structure by folding back upon itself and forming covalent bonds between complementary bases.

• Each type of tRNA molecule translates a particular mRNA codon into a particular amino acid.

• Although there are 61 codons that code for amino acids, there are only 45 different tRNA molecules.

• The nucleotide sequence at both the amino acid attachment and the anticodon ends of each tRNA is instrumental in specifying which amino acid is attached to the tRNA by aminoacyl-tRNA synthetase.