Bio - RNA, DNA, Evolution

What is the central dogma of molecular biology?

• DNA→protein→RNA
• RNA→DNA→protein
• DNA→RNA→protein
• DNA→RNA→amino acid

The bonds between the ______ hold the polynucleotide chains of DNA together.

• complimentary bases
• amino acids
• sugars
• phosphates

Which is a way that DNA differs from RNA?

• DNA has 2 strands RNA has 1
• DNA has Thymine and RNA has Uracil
• DNA is composed of deoxyribose and RNA is composed of Ribose
• all of the above

What is the first step of transcription?

• promotion
• elongation
• initiation
• splicing

Which is not involved in translations?

• amino acids
• m-RNA
• t-RNA
• DNA

A frame shift mutation can be caused by an insertion or _____?

• silent mutation
• deletion
• nonsense mutation
• substitution

The genetic code is redundant.

• true
• false

The genetic code is ambiguous.

• true
• false

DNA replication results in two identical DNA molecules.

• true
• false

Concentrations of nitrogen bases are the same in all species.

• true
• false