Which of the following is considered the first receiver for the nicotine in a smocking person? 1.left atrium
2.right atrium
3.left ventricle
4.right ventricle

In guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?