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DNA + genes

notes on dna + genes

gene section of DNA that contains the instructions for building a protein; makes up the genotype
traits makes up the phenotype
DNA deoxyribonucleic acid; found in the cell nucleus where it is packaged in chromosomes; double helix
diploid cells have 2 of each kind of chromosome
haploid cells have only 1 kind of chromosome
46 the number of chromosomes in humans
females have 2 x chromosmes
males have 1 x and 1 y chromosome
A adenine
G guanine
C cytosine
T thymine
U uracil
RNA ribonucleic acid; 1 strand; uses ribose instead deoxyribose
Gregor Mendel founder of modern genetics
Mendel's 1st Law principle of segregation; when an individual makes sex cells, half the sex cells carry one allele, and the other half carry the other allele
polygenic traits traits determined by more than one gene
pleiotropy a single gene affects more than one trait
Created by: Tyl3r10959