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Genetics Problem Sets 1 and 2 Answers - Free download as Word Doc (.doc), PDF File (.pdf), Text File (.txt) or read online for free. This document provides examples of monohybrid and dihybrid crosses in pea plants and mice. It discusses Mendel's experiments on pea plant traits like seed shape and height.
7.03 Problem Set 1 Answer Key Fall 2001 1a. Mutants 2 and 16 have dominant Leu- alleles. Remember dominant or recessive alleles are tested by crossing a mutant to wildtype and observing the phenotype of the heterozygote. 1b. The following mutants are in the same genes: (1,19), (3,8,18), (4,13), (5,6,11,15), and (10,14).
7.03 Problem Set 1 Answer Key Fall 2001. 1a. Mutants 2 and 16 have dominant Leu- alleles. Remember dominant or recessive alleles are tested by crossing a mutant to wildtype and observing the phenotype of the heterozygote. 1b. The following mutants are in the same genes: (1,19), (3,8,18), (4,13), (5,6,11,15), and (10,14).
2005 7.03 Problem Set 1 ANSWER KEY 1. Wild-type flies are brown in color. You have discovered two genes that control body color in flies -- gene A and gene B, which are on different autosomal chromosomes. You have three true-breeding mutant strains, all of which have black bodies. Strain One (A*/A*) is homozygous for a dominant mutation in gene A.
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Problems Involving One Gene. In cats, long hair is recessive to short hair. A true-breeding (homozygous) short-haired male is mated to a long-haired female. What will their kittens look like? Two cats are mated. One of the parent cats is long-haired (recessive allele).
While completing genetics problems, you will be asked to carry out step-by-step method which will include reading the problem, interpreting the information given, setting up a "Key", “working the crosses”, and finally presenting and interpreting the results of the crosses.
