Constructing a pedigree is particularly useful when studying inheritance patterns in organisms that________ . a. produce many offspring per generation b. produce few offspring per generation c. have a very large chromosome number d. have a fast life cycle

In the lab, you discover two yeast haploid mutants that cannot produce arginine. You cross them together and the resulting diploid produces arginine. If producing arginine is the wild type phenotype, what can you definitively conclude? A.The haploid strains have identical mutations in the same genes. B.The haploid strains have identical mutations in different genes. C.The haploid strains have mutations in different genes. D.The haploid strains have mutations in the same gene. E.The haploid strains must belong to the complementation group encoding the first enzyme in the biosynthetic pathway.

hybrid has two different genes for a given trait a. True b. Fasle If B indicates tallness then an organism with genes Bb will be short a. True b. False What is the result of meiosis l? a. two genetically identical cells b. four genetically different cells c. Two genetically different cells d. Four genetically identical cells In guinea pigs, black coat is dominant over white coat. To determine whether a black guinea pig is pure or hybrid black, it should be ideally phenotypically crossed with a; a. White guinea pig b. Black guinea pig c. Heterozygous guinea pig d. Homozygous dominant guinea pig

Brandy has naturally blond hair. Based on this information, what do we know about Brandy’s parents? a. At least one of her parents has a recessive blond hair gene. b. Each of her parents must have one recessive blond hair gene. c. Each of her parents must have one dominant brown hair gene. d. Neither of her parents has a recessive blond hair gene.

Define epistasis? a. Allelic variation at two different genes adds together in order to produce a phenotypic outcome b. Genetic variation and environmental variation both affect a given phenotype c. Allelic variation at one gene prevents or conceals the phenotypic consequences of allelic variation at a different gene d. Allelic variation at single gene affects many different phenotypes e. Genes that are near the start of a gene cluster are expressed before genes near the end of the cluster