Gene Probability Python Code

import random

genotype = [0,0]
homoDom=0;
heteroDom=0;
homoRec=0;
dom=0;
rec=0;
bigtable=[]
print "Genotype\t| Genotype name\t\t| Phenotype"
print "====================================================="
for x in range(0,100):
    genotype[0]=int(random.randrange(0,100)/50)
    genotype[1]=int(random.randrange(0,100)/50)
    if genotype[0] == 1:
            if genotype[1] == 1:
                print "RR \t\t| homozygous dominant\t| normal skin"
                bigtable.append(["RR", "homozygous dominant", "normal skin"])
                homoDom+=1
            else:
                print "Rr \t\t| heterozygous dominant\t| normal skin"
                bigtable.append(["Rr", "heterozygous dominant", "normal skin"])
                heteroDom+=1
    else:
        if genotype[1] == 1:
            print "rR\t\t| heterozygous dominant\t| normal skin"
            bigtable.append(["rR", "heterozygous dominant", "normal skin"])
            heteroDom+=1
        else:
            print "rr\t\t| homozygous recessive\t| albino"
            bigtable.append(["rr", "homozygous recessive", "normal skin"])
            homoRec+=1
print "Statistics:"
print "RR: "+str(homoDom)+"/100 Rr or rR: "+str(heteroDom)+"/100 rr: "+str(homoRec)+"/100."
rec=homoRec
dom=homoDom+heteroDom
print str(dom)+"/100 were dominant. "+str(rec)+"/100 were recessive."
blabla=raw_input("Press ENTER to continue... ")