L5 Starter (Nucleic Acids Recap)

What are the 3 bases on a tRNA molecule that bind to the mRNA called?

• base triplet

• anticodon

• codon

• intron

What does the 't' of tRNA stand for?

• translation

• transfer

• transplant

• tryinghard

Which of these statements are TRUE about tRNA (select ALL that apply)

• It carries a specific amino acid

• It is single stranded

• It has hydrogen bonding

• It is less stable than mRNA

DNA is formed from three main groups of molecules: pentose sugars, phosphate groups and nitrogenous bases. The bases can be divided into purines and pyrimidines.

Identify the two pyrimidines below.

• A

• B

• C

• D

Which of the following nucleotides contains uracil?

• A

• B

• C

• D

The molecule which transfers genetic information from DNA to ribosomes.

• tRNA

• mRNA

• rRNA

• ATP

The components of a ribosome

• tRNA

• mRNA

• rRNA

• proteins

The components of a ribosome

• tRNA

• mRNA

• rRNA

• proteins

DNA and RNA are long chains of nucleotides joined by phosphodiester bonds. What are these types of molecules called?

• Polymer

• Monomer

• Peptide

• Polynucleotide

Nucleotides are formed from a sugar, nitrogen-containing organic base and a phosphate group. What type of sugar?

• triose

• tetrose

• pentose

• hexose