Independent assortment means that:   the segregation of one gene pair occurs as if no other gene pairs were presen the gametes must be heterozygous in all cases the phenotypic ration of the F2 generation will be the same for both mono- and dihybrid crosses the segregation of one gene pair depends on the segregation of other gene pairs monohybird crosses will show segregation and independent assortment

State the predicted ratios of genotypes and phenotypes within both monohybrid and dihybrid crosses

In pea plants stem length is either long(dominant)  or short(recessive). 2 heterozygous long pea plants were crossed. The progeny included 402 pea plants, 308 of which were long and 94 of which were short. What is the ratio expected of long and short? 1:1  3:1 9:3:3:1 1:2:1

The cross AaBb x AABB results in which of the following phenotypic ratios? 9:3:3:1 1:1:1:1 1:1 1:0

What are result of dihybrid cross where the two parent different in two pair of constrastig traits?

In a trihybrid cross, we can tell which class is the double crossover class because: they will be the least frequent of the progeny types You cannot tell unless it is specified in the question they will be equal to the non crossover the wild type alleles will all be together and the mutant ones all together they will have the same phenotypes as the parentals

Homozygous purple flowers have the genotype WW, and W is a dominant allele. A pea plant with unknown genotype and purple flowers is test crossed with a homozygous recessive white-flowered plant (genotype ww), and one-half of the resulting progeny have purple flowers, while the other half have white flowers. What is the genotype of the test-crossed parent?   do not copy from others

A researcher at ASU is studying the exotic Unicorn Fairy plant. The plant has three genes of interest with the dominant alleles being T-tall, H=hairy leaves and P=purple flowers. The three genes are located in different chromosomes. A trihybrid plant is crossed with a plant that is heterozygous for T and homozygous recessive for the other two genes. What is the probability of getting offspring that is tall, has hairy leaves and white flowers? 9/64 5/8 8/64 O 3/64 O 3/16

Draw a tree diagram of the cross and determine all possible offspring genotypes and at what frequency each will appear

Why are the types of offspring described in part Fig1(a) more numerous than those described in Fig 1(b)?