Hw Chp9email to biovcc@yahoo.com before the quiz on this chapter

1 Define and distinguish between self-fertilization, cross-fertilization, purebred organisms, hybrids, the P generation, the F1 generation, and the F2 generation.

2. Define and distinguish between the following pairs of terms: heterozygous versus homozygous, dominant allele versus recessive allele, genotype versus phenotype, and
phenotypic ratio versus genotypic ratio.

3 Explain how a pedigree is used to determine how a particular human trait is inherited. Define a carrier and explain how carriers are revealed in human pedigrees.

4. Explain how the environment influences the expression of traits.

5 Explain why sex-linked diseases are more common in male humans.