Exploring DNA Structure and Function

What is the primary focus of the first day in the new unit?

• DNA replication

• RNA transcription

• DNA structure

• Protein synthesis

Tags

NGSS.HS-LS1-1

Which category of molecules does DNA belong to?

• Lipids

• Nucleic acids

• Carbohydrates

• Proteins

What was initially thought to be responsible for hereditary traits before DNA was discovered?

• Carbohydrates

• Lipids

• Nucleic acids

• Proteins

Who were the two scientists credited with discovering the double helix structure of DNA?

• Mendel and Darwin

• Franklin and Wilkins

• Watson and Crick

• Hooke and Leeuwenhoek

What shape is the DNA molecule described as?

• Single helix

• Triple helix

• Double helix

• Quadruple helix

Which base pairs always connect to each other in DNA?

• Guanine and Thymine

• Adenine and Guanine

• Cytosine and Thymine

• Adenine and Thymine

What type of bond connects the sugar and phosphate groups in the DNA backbone?

• Ionic bond

• Hydrogen bond

• Metallic bond

• Covalent bond

What is the significance of hydrogen bonds in the DNA structure?

• They provide structural rigidity

• They connect the sugar and phosphate groups

• They form the backbone of DNA

• They allow DNA to unzip for replication

In which part of the cell is DNA found in eukaryotes?

• Ribosome

• Mitochondria

• Nucleus

• Cytoplasm

How is DNA typically arranged in prokaryotes?

• In multiple circular chromosomes

• In a single circular chromosome

• In a single linear chromosome

• In multiple linear chromosomes