Cancer cells within which of the following biopsy samples would be the best indicator that the cancer has metastasized and is circulating through the bloodstream?

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1. Cancer cells within which of the following biopsy samples would be the best indicator that the cancer has metastasized and is circulating through the bloodstream?

	Alleles
	Phenotype
	Gametes
	Gonads
	Genes
	Crossing over
	Meiosis
	Mitosis
	Segregation
	Quantitative traits

A.	The separation of a pair of alleles
B.	Results in two identical daughter cells
C.	Traits with a wide range of phenotypes like eye color, height, and intelligence
D.	Small segments of DNA that code for proteins
E.	Occurs during prophase I of Meiosis I
F.	Alternate forms of genes
G.	Sex organs
H.	Physical traits
I.	Results in a reduced number of chromosomes
J.	Sex cells

1. Assume the gene for freckles is dominant (F). A woman with freckles has a son that does not. What would have to be the genotype of the mother?

2. Assume that Tay-Sachs disease only affects homozygous recessive individuals. If two parents are carriers, what are the chances that their child would have the disease?