DNA Structure and Function Concepts

The video explores DNA, the molecule that carries genetic instructions for life. It covers the structure of DNA as a double helix, its functions in replication and protein synthesis, and its role in genetic inheritance. The video also discusses mutations and their impact on evolution, as well as modern applications of DNA in science and medicine, such as forensic science and genetic engineering.

Who were the scientists credited with the discovery of DNA's structure?

• Charles Darwin and Gregor Mendel

• James Watson and Francis Crick

• Albert Einstein and Niels Bohr

• Marie Curie and Rosalind Franklin

What is the shape of the DNA molecule commonly referred to as?

• Quadruple Helix

• Single Strand

• Double Helix

• Triple Helix

Which base pairs with adenine in the DNA structure?

• Guanine

• Uracil

• Cytosine

• Thymine

What is the process called when DNA is copied before cell division?

• Mutation

• Transcription

• Translation

• Replication

During protein synthesis, what molecule is DNA first transcribed into?

• Lipid

• Protein

• RNA

• Enzyme

How many pairs of chromosomes do humans have?

• 25

• 24

• 23

• 22

What determines if a trait like eye color is expressed?

• A combination of dominant and recessive genes

• Only recessive genes

• Neither dominant nor recessive genes

• Only dominant genes

What are changes in the DNA sequence called?

• Mutations

• Transcriptions

• Replications

• Translations

Which technology allows scientists to edit genes?

• CRISPR

• MRI

• PCR

• X-ray

What is one application of DNA in modern science?

• Weather forecasting

• Forensic science

• Astrology

• Cooking