DNA intro quiz

Which elements are found in a DNA molecule? Choose all that apply

• Carbon, Hydrogen, Oxygen

• Sulphur

• Magnesium

• Nitrogen

• Phosphorus

Who discovered DNA and when?

• Watson and Crick in 1953

• Fredrich Miescher in 1869

• Rosalind Franklin in 1952

• Hershey and Chase in 1952

Before it was proved (by Alfred Hershey and Martha Chase) that genetic material was made of DNA, what did most people think genes were made of?

• Carbohydrates

• Proteins

• Hydrocarbons

• Hydrogen carbonates

What can be defined as a length of DNA that codes for a protein?

What is defined as a thread-like structure of DNA, carrying genetic information in the form of genes?

How many chromosomes are in the nucleus of a human liver cell?

• 23

• 33

• 46

• 72

Inheritance is defined as the transmission of _________ ________ (2 words) from generation to generation.

How many covalent bonds can an oxygen atom form with other atoms?

• 1

• 2

• 3

• 4

How many covalent bonds can a carbon atom form with other atoms?

• 1

• 2

• 3

• 4

Which of these describes the structure of DNA? Choose all that apply

• A single helix

• A double helix

• A triple helix

• A polymer of amino acids

• A polymer of nucleotides