BIO 123 PATTERNS OF GENETIC INHERITANCE QUIZ AND ANSWERS

BIO 123 PATTERNS OF GENETIC INHERITANCE QUIZ AND ANSWERS1. What are alleles? A. genes for different traits, such as hair color and eye color B. locations of genes on chromosomes C. alternative forms of a gene for a single trait, such as blue eyes and brown eyes D. recessive forms of a kind of characteristic carried by genes E. dominant forms of a kind of characteristic carried by genes 2. A testcross occurs when an individual with the _____________ is crossed with an individual having the ______________. A. heterozygous dominant, homozygous recessive B. homozygous dominant, heterozygous recessive C. dominant phenotype, recessive phenotype D. dominant phenotype, dominant phenotype E. homozygous recessive, homozygous recessive 3. This figure shows a human pedigree. Based on the information presented in this figure, what type of disorder would this be? A. due to multiple alleles B. autosomal recessive C. incomplete dominance D. codominant E. autosomal dominant