13Mendel - Most genes are independent of each other. sum...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Mendelian Genetics Drosophila notation homozygous locus genotype true-breeding heterozygous P generation F1 generation phenotype dominant recessive Punnett square F2 generation monohybrid cross Gregor Mendel 1 st law, segregation of alleles : alleles of a gene pair separate from each other during gametogenesis 2 nd law, independent assortment of genes : allele segregation at one gene is independent of allele segregation at other genes monohybrid testcross dihybrid cross Problem #1 . P: cn cn pb + pb + x cn + cn + pb pb; determine the expected genotypic ratio for the F 2 product rule : when two events are independent of one another, the probability that they will occur together is the product of their individual probabilities.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Most genes are independent of each other. sum rule : when two events are mutually exclusive, the probability that either of the two events will occur is the sum of their individual probabilities. Problem #2 . Determine the phenotypic ratio for the offspring of the cross AaBbccDD x AabbCcDd. Problem #3 . Determine the probability that the first offspring of that cross will be AaBbCcDd Chi Square Analysis 2 = (O E) 2 E Problem #4 . AaBb x AaBb A_bb 11 A_B_ 66 aaB_ 13 aabb 10 n = 100 2 = 23 cn cn cn cn cn cn cn cn cn cn cn + cn + cn + cn + cn + cn + cn + cn + cn + cn + cn + cn cn cn +...
View Full Document

This note was uploaded on 04/22/2008 for the course BIO 325 taught by Professor Saxena during the Spring '08 term at University of Texas at Austin.

Ask a homework question - tutors are online