DNA intro

What are the four nitrogenous bases found in DNA?

• Adenine, Thymine, Cytosine, Guanine

• Adenine, Uracil, Cytosine, Guanine

• Adenine, Thymine, Cytosine, Uracil

• Guanine, Thymine, Cytosine, Adenine

Tags

NGSS.HS-LS3-1

What is a gene?

• A segment of RNA that helps in protein synthesis.

• A segment of DNA that contains the instructions for making a specific protein.

• A type of enzyme that catalyzes biochemical reactions.

• A cellular structure that stores genetic information.

Tags

NGSS.HS-LS1-1

What are the building blocks of DNA?

• Amino acids

• Nucleotides

• Fatty acids

• Monosaccharides

Where is DNA located in eukaryotic cells?

• In the cytoplasm.

• In the mitochondria.

• In the nucleus.

• In the ribosomes.

What are the threadlike structures that DNA coils into called?

• Chromosomes

• Chromatids

• Centromeres

• Nucleotides

Tags

NGSS.HS-LS3-1

What does DNA stand for?

• Deoxyribonucleic acid.

• Dioxyribonucleic acid.

• Deoxyribose nucleic acid.

• Dioxyribose nucleic acid.

What does the structure of DNA resemble?

• A twisted ladder.

• A straight line.

• A spiral staircase.

• A flat sheet.

What is the significance of the sequence of bases in DNA?

• It determines the genetic code and the traits of an organism.

• It helps in the formation of proteins only.

• It has no impact on the organism's traits.

• It is only important for RNA synthesis.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

How do the nitrogenous bases pair in DNA?

• Adenine pairs with Cytosine, and Thymine pairs with Guanine.

• Adenine pairs with Thymine, and Cytosine pairs with Guanine.

• Adenine pairs with Guanine, and Thymine pairs with Cytosine.

• Cytosine pairs with Thymine, and Guanine pairs with Adenine.

What molecule's structure is depicted in the drawing?

• A DNA molecule.

• A protein molecule.

• A carbohydrate molecule.

• A lipid molecule.