DNA is copied during a process called ______________ which results in an identical copy of itself.

• Photosynthesis
• Transcription
• Replication
• Translation

Genes contain instructions for assembling _______________.

• Nucleosomes
• Proteins
• Purines
• Pyrimidines

Tags

NGSS.HS-LS1-1

Unlike DNA, RNA contains...

• a phosphate group
• thymine
• guanine
• uracil

What is produced during transcription?

• Protein
• tRNA
• mRNA
• DNA

What happens during the process of translation?

• The cell uses information from messenger RNA to produce proteins.
• Messenger RNA is made from DNA.
• Copies of DNA molecules are made.
• Transfer RNA is made from messenger RNA.

DNA has a ______ strand; RNA has a ______ strand.

• double/double
• double/triple
• double/single
• single/single

In RNA, the nitrogen base____ replaces ____ that was present in DNA. 

• A, U (adenine, uracil)
• C, G (cytosine, guanine)
• U, T (uracil, thymine)
• U, A (uracil, adenine)

What is the transcribed mRNA strand for CATTAA

• GUAAUU
• GTAATT
• AUGGUU
• CATTAA

Which type of bond, denoted by the arrows, allows DNA to be readily replicated?

• ionic bond
• peptide bond
• covalent bond
• hydrogen bond

Which best describes the shape of a DNA molecule? 

• single helix 
• double helix
• single strand
• t-shaped strand