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From the bits of plants remaining in the guts of some insects, researchers were also able to clone some of the Jurassic vegetation. They found that in one species of plants, the flowers came in two colors, but that color was controlled by two genes that are on separate chromosomes. One gene determines if any flower color pigment will be made at all (color is dominant to no color). The second gene determines which color pigment will be produced. Here A = Red, while a = pink.
a. If you were to cross two plants with the genotypes CCAA X ccaa, what would you expect the genotype and phenotype of the F1 to be?
b. If you were to cross the F1 with each other, what phenotypic ratio would you expect in the F2, and what genotypes would be included in each phenotype?
While you are on a work-exchange program in Ghana, a cholera epidemic sweeps through the area where you are residing. Of the 2000 people living in the area, 200 people contract cholera and 20 die from the disease within one month.
The purpose of this exercise is to demonstrate the comparative effect of UV on three bacterial populations. This could have been accomplished without a cardboard or plastic cover. Why was the cover used?
What is the relationship between the variance in allele frequency and the difference between the average observed and expected heterozygosities?
How did the zoological research of the comparative anatomist J.Z. Young in the 1930's along with the Donnan effect and the Nernst and Goldman equations pave the way for the electrophysiological discoveries of Hodgkin and Huxley relating to voltage..
A horse has a diploid complement of 64 chromosomes including 36 acrocentric chromosomes. The donkey has 62 chromosomes including 22 acrocentric chromosomes.
Think about the two linked traits in a population in which half of the individuals are double heterozygotes with genotype AB/ab and the other half are double homozygotes.
What would occur to the preferred habitat of your plant (Red Maple) in case of partial water drainage of the Mer bleue marsh (such as the water level would go down half the depth of the marsh).
Acetylcholine binds this membrane protein, which subsequently opens to allow sodium to enter the cell. Acetylcholine exerts its effect on what kind of transport protein.
What is the energy required to move a mole of urea out of thekidney cells and into the urine?
You treat a partially purified preparation of protein with a reagent that breaks bonds between sulfur atoms. Which level(s) of protein structure are likely to be affected the most and WHY?
A similar process occurs at the G2 to M checkpoint. A G2 cyclin binds to a Cdk to form a complex. Until the cell is ready to enter mitosis, phosphorylation of the CdK by another kinase keeps the Cdk inactive.
Sidney Brenner discussed that the code was non overlapping because he considered that coding restrictions would occur if it were overlapping.
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