Topic 6 - Inheritance, Variation and Evolution Flashcards
What does DNA stand for
DeoxyriboNucleic Acid
what is dna and what is it made of
it is the chemcial that all of the genetic material in a cell is made from
what does the dna contain
it contains coded information - instructions to put an organism together
what does the dna determine
it determines what inherited characteristics you have.
where is dna found
found in nucleus, in chromosomes
what is the shape of the dna
double helix
what is a gene
it is a small section of the dna
what does the gene code to make
it codes a particular sequence of amino acids which make a specific protein
how many amino acids does the gene use
only 20 amino acids make up thousands of different proteins
what is the main function of the gene
tells the cell in what order to put amino acids
what is genome
its a term for the entire set of geneitc material
what can you do if you know the human genome
you can identify genes that are linked to diseases
what is sexual reproduction
when a mother and father share genetic information between two organisms
what does the mother and father produce
they produce gametes by meiosis e.g egg and sperm
what does each gamete contain in humans
23 chromosomes
