14 AP Biology Central dogma of genetics and mutations

What is the corresponding mRNA codon for the DNA triplet AGT found on the template strand?

• UCA

• TCA

• UGA

• ACU

RNA polymerase moves in which direction along the DNA?

• 5' to 3' 
• 3' to 5' along the template strand
• 3' to 5' along nontemplate(coding) strand
• 5' to 3' along the template strand

What is the anticodon on the tRNA that binds to mRNA codon for the DNA coding sequence AAA?

• TTT
• UUU
• UUA
• AAA

What must happen to a newly made polypeptide before it can be secreted from a cell?

• it must be translated by a ribosome found in the cytoplasm of the cell and then sent toward the cell membrane

• it must be produced by a ribosome on the rough ER and sent to the golgi apparatus

• It must be produced by a ribosome in the golgi apparatus and sent to the rough ER.

What is the effect of a nucleotide-pair substitution that results in a nonsense mutation in a gene?

• it changes an amino acid in the encoded protein
• It has no effect on the amino acid sequence of the encoded protein
• it introduces  premature stop codon into the mRNA
• it alters the reading frame of the mRNA

Tags

NGSS.HS-LS3-2

A possible sequence of nucleotides in the template strand of DNA that would code for the polypeptide sequence phe-leu-ile-val would be?

• 5'-TTG-CTG-CAG-TAG-3'
• 3'-AAC-GAC-GUC-AUA-5'
• 3'-AAA-AAT-ATA-ACA-5'
• 3'-AAA-GAA-TAA-CAA-5'

Tags

NGSS.HS-LS1-1

What amino acid sequence will be produced based on the mRNA codon sequence
5'-AUG-UCU-UCG-UUA-UCC-UUG-3'

• met-ser-leu-ser-leu-ser
• met-ser-ser-leu-ser-leu
• met-leu-phe-arg-glu-glu
• met-glu-arg-arg-glu-leu

Tags

NGSS.HS-LS1-6

What is a promoter?

• Sequence of DNA at the beginning of the gene that tells RNA polymerase where to start transcription.

• Sequence of RNA that tells the ribosome where to start translation.

• Sequence of DNA at the beginning of the gene that tells the ribosome where to start transcription

• Sequence of RNA that tells RNA polymerase where to start translation.

In RNA, uracil pairs with ______.

• cytosine

• adenine

• guanine

• thymine

The anticodon of a particular tRNA molecule is ________.

• complementary to the corresponding mRNA codon.

• complementary to the corresponding triplet in rRNA.

• the part of tRNA that bonds with a specific amino acid.

• catalytic, making the tRNA a ribozyme.