Unit Two: DNA Flashcards
What does DNA stand for?
Deoxyribose nucleic acid
Where is DNA found?
In what form is it found?
The nucleus
In really long molecules called chromosomes
What is a gene?
A section of DNA
What do genes contain?
The instructions to make a specific protein
How do cells make proteins?
By stringing amino acids together in a particular order
What is mitosis?
When a cell reproduces itself by splitting to form to identical offspring
What else uses mitosis?
Asexual reproduction?
What is meiosis
Meiosis produces cells which have half the normal number of chromosomes
What is cystic fibrosis?
A genetic disorder of the cell membranes. It results in the body producing a lot of thick sticky mucus in the air passages and in the pancreas
What causes cystic fibrosis?
A recessive allele - ‘f’
What is polydactyl?
A genetic disorder where a baby is born with extra fingers or toes.
What is polydactyl caused by?
A dominant allele - ‘D’
