Why did the F1 offspring of Mendel's classic pea cross always look like one of the two parental varieties?     No genes interacted to produce the parental phenotype.     Each allele affected phenotypic expression.     One allele was dominant.     The traits blended together during fertilization.

You cross pure breeding plants with short stamens and white flowers to plants (also purebreeding) with long stamens and blue flowers. All the F1 have white flowers and long stamens. You cross the F1 to another strain of plants, pure breeding for blue flowers and short stamens. The F2 progeny are: 12 White and Long, 85 White and short, 8 Blue and short, 95 blue and long. What is the distance between the two genes? 10 mu 90 mu 1 mu 20 mu They are not linked

Mendel's law of independent assortment states that the alleles of two (or more) different genes get sorted into gametes independently of one another. In other words, the allele a gamete receives for one gene does not influence the allele received for another gene. Assuming that during Metaphase 1 you have possibility 1 see picture below. Sketch possibility number 2 by using red and yellow color pencils. and upload possibility 2. Note: if you do not color pencils label them yellow and red. Possibility 1 Sketch Possibility 2 # Two equally probable arrangements of chromosomes at metaphase I

*Ms. Libby Davison bought three Congo Lily bulbs at a flower show after she was told they were each from different inbred lines. One had red flowers, on yellow flowers, and one white flowers. She determined that flower color was controlled by three alleles at a single gene. Red was found to be codominant with yellow, and both alleles dominant to white. Some of the crosses she made and the resulting progeny are listed below: Progeny All red Cross Red (selfed) Yellow (selfed) White (selfed) Red x yellow Yellow x white Red x white Orange (selfed) 1 red: 2 orange: 1 yellow a. Designate each allele with an appropriate gene symbol. All yellow All white All orange All yellow All red b. Identify all possible genotypes of the following phenotypes i. Red ii. Yellow Taken from Introduction to genetic analysis 7 edition. 1999. Griffiths et al. Chapter 4. iii. White iv. Orange c. Determine the expected phenotypes and their ratios in the progeny from each of the following crosses. i. Orange x white…