6.1 DNA and RNA Structure

• RNA is double-stranded and located only in the nucleus.

  False
• The strandedness of RNA is single
• Match the component of a DNA nucleotide with its description:

  Sugar ↔️ Deoxyribose

  Nitrogenous Base ↔️ A, T, C, or G

  Phosphate Group ↔️ Structural backbone
• Complementary base pairing in DNA allows it to form the double helix structure.


  True
• DNA is composed of nucleotides linked together to form a double helix
• A phosphate group is part of a DNA nucleotide.


  True
• What type of sugar is found in RNA nucleotides?

  Ribose
• DNA nucleotides contain deoxyribose sugar.

  True
• What is the complementary base pairing rule in DNA?

  A pairs with T, C with G
• Match the sugar with its corresponding molecule:

  Deoxyribose ↔️ DNA

  Ribose ↔️ RNA
• Each DNA nucleotide contains one of four possible nitrogenous bases.


  True
• What is the sugar component in DNA nucleotides called?

  Deoxyribose sugar
• RNA contains uracil instead of thymine.

  True
• The sugar found in DNA is deoxyribose
• In complementary base pairing, Adenine (A) pairs with Thymine
• Cytosine pairs with Guanine in complementary base pairing.


  True
• The sugar in a DNA nucleotide is called deoxyribose
• The sugar in an RNA nucleotide is called ribose
• A nitrogenous base in a DNA nucleotide carries genetic information.


  True
• In DNA, Adenine (A) pairs with Thymine via two hydrogen bonds.
• The double helix structure of DNA is formed by complementary base pairing.

  True
• Arrange the steps in forming the double helix structure of DNA.

  1️⃣ Two strands of nucleotides are formed

  2️⃣ Complementary base pairing occurs

  3️⃣ Hydrogen bonds stabilize the structure

  4️⃣ Strands twist to form a double helix
• Adenine (A) in DNA always pairs with Thymine
• What type of bonds hold the base pairs in DNA together?

  Hydrogen bonds
• Hydrogen bonds stabilize the double helix structure of DNA.
• What two processes allow DNA to form its iconic double helix structure?

  Complementary base pairing and hydrogen bonding
• RNA contains the nitrogenous base Uracil instead of Thymine.
• RNA is single-stranded, while DNA is double-stranded.


  True
• Nucleotides are the building blocks of DNA and contain a deoxyribose sugar, a phosphate group, and a nitrogenous base.


  True
• What sugar is present in a DNA nucleotide?

  Deoxyribose
• Complementary base pairing in DNA allows it to form the double helix structure.


  True
• Complementary base pairing allows DNA to form the double helix structure.


  True
• Match the sugar in DNA and RNA with its name:

  DNA ↔️ Deoxyribose

  RNA ↔️ Ribose
• What is the key structural difference between DNA and RNA?

  Sugar and nitrogenous base
• Nitrogenous bases in DNA carry genetic information.

  True
• RNA contains uracil instead of thymine
• Uracil is a nitrogenous base found in RNA but not in DNA.

  True
• A DNA nucleotide consists of three primary components: deoxyribose sugar, phosphate group, and a nitrogenous base
• The nitrogenous base in a DNA nucleotide carries genetic information.

  True
• What nitrogenous base replaces thymine in RNA?

  Uracil