DNA History and Structure

Genetic info flows in one direction. Which best represents this flow?

• DNA-protein-RNA

• Protein-RNA-DNA

• RNA-protein-DNA

• DNA-RNA-protein

What are the 2 things a tRNA molecule has?

• amino acid & anticodon

• amino acid & protein

• anticodon & sugar

• phosphate & sugar

What are the building blocks of proteins?

• monosaccharides

• amino acids

• sugars

• fatty acids

There are a total of ____ different amino acids

• 20

• 1

• 4

• unlimited

which process is shown?

• diffusion

• repiration

• recombination

• translation

What is the sugar in DNA called?

• glucose

• lactose

• ribose

• deoxyribose

What is the SHAPE of DNA?

• double ladder

• twisted ladder

• double helix

• single helix

The groups of 3 bases on mRNA are called

• triplets

• codons

• anticodons

• amino acids

What is TRANSLATION?

• mRNA → protein

• DNA → mRNA

• tRNA → DNA

• DNA → DNA

What are the 3 parts of a NUCLEOTIDE?

• sugar, phosphate, nitrogen base

• sugar, acid, RNA

• sugar, protein, nitrogen base

• phosphate, ATP, nitrogen base