DNA Packaging and Chromosomes

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Tags

NGSS.HS-LS1-1

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for making proteins
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

Which choice best describes the DNA of a prokaryote?

• single circular chromosome

• single linear chromosome

• multiple circular chromosomes

• multiple linear chromosomes

Which choice best describes the DNA of a eukaryote?

• single circular chromosome

• single linear chromosome

• multiple circular chromosomes

• multiple linear chromosomes

Which of the following is NOT a benefit of DNA packaging?

• all of a cell's DNA can fit into the nucleus

• DNA is protected from damage

• genes can be accessed as-needed

• chromosomes can be reshuffled frequently

A nucleosome is best described as

• nucleosomes coiled around each other

• a DNA strand wrapped around histone proteins

• one fully-packaged DNA molecule

• one strand of DNA double-helix

Chromatin is best described as

• nucleosomes super-coiled around each other

• a DNA strand wrapped around histone proteins

• one fully-packaged DNA molecule

• one strand of DNA double-helix

A DNA molecules is best described as

• nucleosomes super-coiled around each other

• a DNA strand wrapped around histone proteins

• one fully-packaged DNA molecule

• one strand of DNA double-helix

DNA replication results in

• three identical copies of each chromosome

• 23 different copies of each chromosome

• 46 identical copies of each chromosome

• two identical copies of each chromosome