DNA Model and Transcription

What is the double helix structure of DNA?

• Spiral staircase shape made of three strands of nucleotides

• Circular structure composed of multiple intertwined strands of nucleotides

• Straight line formed by a single strand of nucleotides

• Twisted ladder shape formed by two strands of nucleotides

What is the role of nucleotides in DNA?

• Nucleotides provide energy for the DNA replication process.

• Nucleotides are responsible for maintaining the shape of the DNA molecule.

• Nucleotides regulate the expression of genes in DNA.

• Nucleotides form the genetic code by forming the sequence of bases.

What is the process of DNA transcription?

• RNA copy of a gene sequence

• Formation of a new DNA strand

• Replication of DNA

• Creating a protein from RNA

What is the role of RNA polymerase in transcription?

• It repairs damaged DNA strands

• It synthesizes RNA from a DNA template.

• It regulates gene expression

• It converts RNA into DNA

What is the role of ribosomes in translation?

• Ribosomes break down proteins into amino acids

• Ribosomes produce ATP for the cell

• Ribosomes translate mRNA into proteins

• Ribosomes store genetic information

Which of the following best describes the double helix structure of DNA?

• A square shape with four strands of nucleotides arranged in a grid

• A straight line with one strand of nucleotides coiled around itself

• A circular shape with multiple strands of nucleotides intertwined

• A twisted ladder shape with two strands of nucleotides coiled around each other

What is the function of nucleotides in DNA?

• Store energy for the cell

• Regulate cell division

• Carry the genetic information

• Produce enzymes for digestion

During DNA transcription, what is the role of RNA polymerase?

• Replicating the DNA molecule

• Repairing mutations in the DNA molecule

• Breaking down the DNA molecule

• Synthesizing an RNA molecule using the DNA template

What is the function of ribosomes in translation?

• Protein synthesis

• Cell division

• DNA replication

• Energy production

Which enzyme is responsible for transcribing DNA into RNA?

• Lipase

• ATP synthase

• DNA helicase

• RNA polymerase