Ch. 12 DNA Assessment (Biology)

A __________ bond holds base pairs together in a DNA molecule

• Covalent
• Hydrogen
• Ionic

What are the 3 parts of a nucleotide?

• Sugar
• Phosphate & sugar
• Nitrogen base
• phosphate, sugar, and base

Which is NOT TRUE about a molecule of DNA?

• Adenine pairs with thymine and cytosine pairs with guanine
• There is ONLY 1 strand in DNA.
• There are two (2) strands in DNA

Tags

NGSS.HS-LS1-1

Where does protein synthesis occur?

• Nucleus
• Mitochondria
• Ribosome

What type of RNA is has amino acids?

• mRNA
• cRNA
• tRNA

Amino acids are joined together with _________ bonds to form a protein.

• Covalent
• Ionic
• Peptide

How are the genetic messages from the chromosome go to the ribosomes?

• mRNA
• rRNA
• tRNA

Three nucleotides are called _________.

• amino acids
• phosphates
• codons

Tags

NGSS.HS-LS3-1

Small, single ringed bases are called ___________.

• purines
• anticodons
• pyrimidines

When DNA is copied, it is called...

• Transcription
• Translation
• Replication