Unit 2 Biology Review

One difference between DNA and RNA is that....

• Only RNA has the base Uracil

• only RNA contains the base Thymine

• only RNA contains the base Cytocine

• only RNA contained the base Guanine

True or false:  RNA is double-stranded.

• true

• false

• it depends on the type

Which of these bases does not exist in RNA?

• C

• T

• U

• A

Which process is used to make mRNA from the DNA in the nucleus?

• transcription

• translation

• replication

Where does transcription take place in EUKARYOTIC cells?

• nucleus

• cytoplasm

• ribosome

Which RNA bases would pair with TACGAA in transcription? 

• AUGCUU

• ATGCTT

• GCATCC

• GCAUCC

How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA

• 4

• 2

• 6

• 12

Transcribe the following DNA sequence into RNA:

• AAT TAG GGC TCG

• TTA ATC CCG AGC

• UUA AUC CCG AGC

• TTU UTC CCG UGC

Amino acids are the building blocks of... 

• DNA

• RNA

• Atoms

• Proteins

Tags

NGSS.HS-LS1-6

Which RNA carries the message from the DNA molecule out of the nucleus?

• mRNA

• rRNA

• tRNA