Exploring the Key Differences Between DNA and RNA

The video explores the differences between DNA and RNA, focusing on their functions, structures, and chemical properties. DNA is used for long-term information storage and is double-stranded, while RNA is single-stranded and used for active functions in cells. The video also discusses the chemical stability of DNA compared to RNA and the differences in their nucleotide bases. It concludes with a recap of these differences and mentions ongoing research into the origins of these molecules.

What is the primary focus of the video?

• The history of genetics

• The function of ribosomes

• The structure of proteins

• The differences between DNA and RNA

What is the main function of DNA in cells?

• To create proteins directly

• To store genetic information

• To transport molecules

• To digest food

How do cells use RNA?

• For long-term information storage

• To create copies of DNA

• To break down DNA

• To perform active functions and create proteins

What is a key structural difference between DNA and RNA?

• DNA is single-stranded, RNA is double-stranded

• RNA is single-stranded, DNA is double-stranded

• Both are double-stranded

• Both are single-stranded

Why are RNA chains typically shorter than DNA chains?

• RNA is only a copy of individual genes

• RNA is used for long-term storage

• RNA is less stable

• RNA is double-stranded

What is the sugar backbone of RNA called?

• Fructose

• Glucose

• Ribose

• Deoxyribose

Tags

CCSS.RL.9-10.9

CCSS.RL.5.1

CCSS.RL.4.1

CCSS.RI.3.5

Which nucleotide base is found in RNA but not in DNA?

• Uracil

• Guanine

• Cytosine

• Adenine

What makes RNA more reactive than DNA?

• The presence of thymine

• The presence of an extra oxygen-hydrogen group

• Its double-stranded structure

• Its longer chains

What is the main use of DNA in modern cells?

• To store long-term genetic information

• To digest RNA

• To transport proteins

• To perform active functions

What is one of the ongoing scientific questions about RNA and DNA?

• How proteins are formed

• The evolutionary steps leading to the RNA-DNA system

• The function of ribosomes

• The structure of chromosomes