Biology Central Dogma and Replication

Which do DNA and RNA have in common?

• Both are double stranded.
• Both contain ribose molecules.
• Both contain phosphate groups.
• Both contain uracil.

If the structure of DNA were likened to a ladder, what would make up the “supporting structure” (not the “rungs”) of the ladder?

• amino acids and sugars
• nucleotide bases, including thymine
• nucleotide bases, including uracil
• sugar-phosphate molecules

What is the complimentary mRNA sequence to the DNA sequence A-T-T-G-C-A.

• T-A-A-C-G-T
• U-A-A-C-G-T
• U-A-A-C-G-U
• T-A-A-G-C-U

Which defines a codon in mRNA?

• pair of nucleic acid and sugar

• pair of phosphate and sugar

• three-base code

• two-base code

What are the building blocks of proteins called?

• DNA
• RNA
• Ribosomes
• Amino Acids

The "central dogma" states that genetic information flows from 

• Protein-->mRNA-->DNA
• Protein-->DNA-->mRNA
• mRNA-->DNA-->Protein
• DNA-->mRNA-->Protein

Tags

NGSS.HS-LS1-1

Transcription takes place in the 

• cytoplasm
• ribosome
• mitochondrion
• nucleus

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.

The parts of a gene that do NOT code for amino acids in a protein are called

• introns
• exons
• codons
• anticodons

The production of mature mRNA in eukaryotes involves

• cutting introns out and splicing exons together

• adding the 5' cap

• adding the 3' poly A tail

• all of these are correct