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A homozygous plant with 20 cm diameter flowers is crossed with a homozygous plant of the same species that has a 40cm diameter flowers. The F1 plants all have flowers 30cm in diameter. In the F2 generation of 512 plants, 2plants have flowers 20 cm in diameter, 2 plants have flowers 40cm in diameter, and the remaining 508 plants have flowers of a range of sizes in between.
a) assuming that all alleles involved act additively, how many genes control flower size in this plant?
b)calculate the mean, variance, and standard deviation for flower diameter in the backcross progency.
Albinism is an autosomal recessive trait in the clouded salamander (Aneides ferreus). In the main cave population at Oregon Caves National Monument, 100 salamanders are albino while 900 individuals are not (891 AA and 9 Aa). Assume that this popul..
Mary has freckles,but her husband Dick does not.Mary's father has freckles but her mother does not.what is the propability that Mary and Dick's child will have freckles?
Would analyzing the breakdown of a metabolite like glucose be a useful way to mesure rate of aerobic respiration?
Compute the total number of ATP molecules that will be produced upon complete breakdown of one C18 fatty acid molecule.
Explain why random union of male and female gametes is necessary for Medelian segregation and independent assortment to occur.
The allele l in Drosophila is recessive, sex-linked, and lethal when homozygous or hemizygous (the condition in males). If a female of genotype L/l is crossed with a normal male, what is the probability that the first two surviving progeny will be..
What are the steps to take in inoculating a new culture from a broth tube to an agar plate, or from an agar plate to a broth culture.
A three-factor cross in Salmonella typhimurium was performed using bacteriophage P22. The cross was between an arg-leu-his- recipient bacterium and bacteriophage P22.
why is Coral reefs are decreasing in size globally?
What is the advantage of having a cerebrum that is highly convulated? What term is used to indicate its grooves? Its outward folds? What groove divides the cerebrum into two hemispheres? What divides the parietal from the frontal lobe? The parietal f..
The effects of water loss on the water budgets of lactating female mammals in arid environments are not well understood. Specify a hypothesis regarding mechanisms by which females might prevent water losses in their milk from forcing them into neg..
Discuss how does Newton's force of gravitational attraction between two water molecules compare to van der waals attractive force?
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