Biology 1111 Chapter 11 Test Questions and Correct Answers.

Albinism - Answer Absence of pigment in the skin, hair, and eyes Allele - Answer Different forms of a gene autosome - Answer chromosome that is not a sex chromosome Carrier - Answer a person who is heterozygous with one normal, dominant allele and one defective, recessive allele. codominance - Answer A condition in which neither of two alleles of a gene is dominant or recessive. cross-fertilization - Answer The fusion of sperm and egg derived from two different individuals. Dominant - Answer Describes a trait that covers over, or dominates, another form of that trait. Gene - Answer a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring. gene linkage - Answer Traits that tend to be inherited together as a consequence of an association between their genes genetic recombination - Answer new combination of genes produced by crossing over and independent assortment Genotype - Answer An organism's genetic makeup, or allele combinations. Hemophilia - Answer A hereditary disease where blood does not coagulate to stop bleeding Heterozygous - Answer An organism that has two different alleles for a trait Homozygous - Answer An organism that has two identical alleles for a trait