T4.3 Genetic Coding and Protein synthesis

What is the shape of the DNA molecule?

• Linear

• Double helix

• Circular

• Zigzag

Which of the following is a component of a NUCLEOTIDE in DNA?

• Ribose sugar

• Deoxyribose sugar

• Phosphate group only

• Amino acid

Tags

NGSS.HS-LS1-1

What is the primary function of DNA?

• To store energy

• To catalyze chemical reactions

• To store genetic information

• To transport molecules

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

During DNA replication, which enzyme is responsible for unwinding the DNA double helix?

• DNA polymerase

• Helicase

• Ligase

• Primase

What is the role of DNA polymerase in DNA replication?

• To unwind the DNA

• To synthesize new DNA strands

• To join Okazaki fragments

• To add RNA primers

Which of the following is the correct order of stages in DNA replication?

• Initiation, Elongation, Termination

• Elongation, Termination, Initiation

• Termination, Initiation, Elongation

• Initiation, Termination, Elongation

What is the purpose of TRANSCRIPTION in protein synthesis?

• To replicate DNA

• To convert DNA into RNA

• To assemble amino acids into proteins

• To transport proteins

What is the name of the RNA molecule that carries the genetic code from DNA to the ribosome?

• tRNA

• rRNA

• mRNA

• siRNA

Tags

NGSS.HS-LS1-1

During translation, what is the role of tRNA?

• To carry amino acids to the ribosome

• To form the ribosome

• To transcribe DNA

• To synthesize RNA

What is the start codon for protein synthesis?

• UAA

• UAG

• AUG

• UGA