Biology 12.3: DNA, RNA, and Protein

Match the following

• Molecules made of amino acids

• Proteins

• RNA

• Ribonucleic Acid

• DNA

• Deoxyribonucleic Acid

Tags

NGSS.HS-LS1-1

Match the following

• Makes up ribosomes

• tRNA

• Transports amino acids to ribosome

• rRNA

• Copies DNA code and moves it to ribosome

• mRNA

True or False: DNA codes for RNA, which guides protein synthesis.

• True

• False

Tags

NGSS.HS-LS1-1

This is a nucleic acid; it contains the sugar ribose, the base uracil, and usually is single stranded.

• DNA

• RNA

• Introns

• Exons

These molecules are long strands of RNA nucleotides that are formed complementary to one strand of DNA; they travel from the nucleus to the ribosome to direct the synthesis of a specific protein.

• RNA

• Messenger RNA

• Ribosomal RNA

• Transfer RNA

This is the type of RNA that associates with proteins to form ribosome in the cytoplasm.

• RNA

• Messenger RNA

• Ribosomal RNA

• Transfer RNA

These are smaller segments of RNA nucleotides that transport amino acids to the ribosome.

• RNA

• Messenger RNA

• Ribosomal RNA

• Transfer RNA

Match the following

• Intron

• The intervening coding sequence missing from the final mRNA

• Transcription

• First step of the central dogma; synthesis of mRNA from DNA; DNA code is transferred to mRNA in the nucleus

• RNA Polymerase

• An enzyme that regulates RNA synthesis

• Exon

• The coding sequence that remains in the final mRNA

Where does transcription take place?

• Nucleus

• Cytoplasm

• Ribosome

• Mitochondria

Reorder the following for the Transcription process.

• mRNA forms; DNA closes up.

• RNA polymerase adds RNA nucleotides according to base-pairing rules.

• RNA polymerase unzips DNA.

• mRNA moves out of nucleus.