gentics of corn
i have attached the genetics of corn assignment and I need it done by 6am today. I will upload the pictures of the corn as well so you can look at it
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BIOQ 1099 Lab exercise: genetics of corn kernelsName: /20Part A: monohybrid crossKernels of corn on the same cob are all “siblings”, offspring of the same two parents. The phenotypes of the parents are known: both parent plants had only dark-coloured kernels (usually called “purple”). Their offspring have a mix of both purple and yellow kernels. These corn kernels can therefore be used to determine the genotypes of the offspring, their parent plants, and how their genes are carried from one generation to the next. Gregor Mendel used this kind of genetic exercise to formulate his three laws of genetics.Select 10 rows on your cob, and count the total number of purple (or brownish) and yellow kernels.Express the numbers from #1 as a ratio. Then divide both numbers by the smaller number to find a reduced ratio. (For example, if your ratio was 53 to 8, divide both numbers by 8 to get 6.625 to 1.)Which is the dominant trait, purple or yellow?List the possible genotypes for each phenotype (purple or yellow), using upper case letters for dominant and lower case for recessive. Remember that genotypes consist of pairs of the same letters. (Example: if yellow is dominant, then use “Y” for yellow alleles and “y” for purple alleles.) Yellow phenotype = genotypePurple phenotype = genotypeHow could two parents with purple kernels have offspring with a mix of purple and yellow kernels? What must the genotypes of the parent plants have been? Use one or more Punnett squares to confirm your conclusion in #5.With these parents, what would be the expected ratios of each phenotype? Do your results in #2 agree with the expected ratios? Why might they be different?Part B: dihybrid crossCount the numbers of each kind of kernel in ten rows of the cob labeled “B”. There are four phenotypes:Purple smoothPurple wrinkledYellow smoothYellow wrinkled Express your results as a four-part ratio. (For example: 98 to 32 to 29 to 16) Then divide all four…
BIOQ 1099 Lab exercise: genetics of corn kernelsName: /20Part A: monohybrid crossKernels of corn on the same cob are all “siblings”, offspring of the same two parents. The phenotypes of the parents are known: both parent plants had only dark-coloured kernels (usually called “purple”). Their offspring have a mix of both purple and yellow kernels. These corn kernels can therefore be used to determine the genotypes of the offspring, their parent plants, and how their genes are carried from one generation to the next. Gregor Mendel used this kind of genetic exercise to formulate his three laws of genetics.Select 10 rows on your cob, and count the total number of purple (or brownish) and yellow kernels.Express the numbers from #1 as a ratio. Then divide both numbers by the smaller number to find a reduced ratio. (For example, if your ratio was 53 to 8, divide both numbers by 8 to get 6.625 to 1.)Which is the dominant trait, purple or yellow?List the possible genotypes for each phenotype (purple or yellow), using upper case letters for dominant and lower case for recessive. Remember that genotypes consist of pairs of the same letters. (Example: if yellow is dominant, then use “Y” for yellow alleles and “y” for purple alleles.) Yellow phenotype = genotypePurple phenotype = genotypeHow could two parents with purple kernels have offspring with a mix of purple and yellow kernels? What must the genotypes of the parent plants have been? Use one or more Punnett squares to confirm your conclusion in #5.With these parents, what would be the expected ratios of each phenotype? Do your results in #2 agree with the expected ratios? Why might they be different?Part B: dihybrid crossCount the numbers of each kind of kernel in ten rows of the cob labeled “B”. There are four phenotypes:Purple smoothPurple wrinkledYellow smoothYellow wrinkled Express your results as a four-part ratio. (For example: 98 to 32 to 29 to 16) Then divide all four…
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