DNA Flashcards
What are chromosomes?
Really long strings of DNA.
What’s the structure of a DNA molecule?
Double-helix structure.
Where are chromosomes found?
In the nucleus of a cell.
What is a gene?
A gene is a section of DNA that codes for a specific characteristic.
What does a gene contain instructions to do?
Make a specific protein.
How do cells make proteins?
By joining strings of amino acids together in a particular order.
How many amino acids are used in our DNA?
20.
Genes tell cells in what order to put the _____ ____ together.
Amino Acids
DNA also determines what ____ __ ____ the proteins produce (e.g red blood cell, skin cell).
Type of Cell
Identical twins have identical DNA, true or false?
True, because their embryo split into 2 parts and began growing as 2 separate foetuses, meaning they have the same genetic information.
What is DNA fingerprinting?
Cutting up a persons DNA into small sections and then separating them. Every person’s genetic fingerprint has a unique pattern, meaning you can tell people apart using their fingerprints.
