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In Drosophila, vestigial (partially formed) wings (vg) arerecessive to normal long wings (vg+) and the gene for this trait is autosomal. The gene for the white-eye trait (w) is on the X-chromosome and is recessive to wild type red eye color (w+). Suppose ahomozygous red-eyed, long-winged female fly is crossed with a homozygous white-eyed,vestigial-winged male fly.
(a) What will be the appearance of the F1?
(b) What will be the appearance of the offspring of a cross of theF1 back to each parent?
(c) What will be the appearance of the F2?
In most cells, there are electrochemical gradients of many ions across the plasma membrane even though there are usually only one or two electrogenic pumps present in the membrane. What mechanisms do plants use to load sucrose produced by photosynt..
question a. describe what changes you observed in the subject between the pre-exercise and the post- exercise
Both RT and PR represent potential targets for antiretroviral drugs. Drugs called nucleoside analogs (NA) act against RT, whereas drugs known as protease inhibitors (PI) act against PR.
Preliminary trials suggest that the drug tamoxifen, antiestrogen commonly use to treat breast cancer, is useful in treating biopolar disorder. Tamoxifen is an inhibitor of Protein Kinase C.
Assume a diploid, single-gene system with 2 alleles, A1 and A2. The frequency of A1 is 0.7 in the parental generation. If we assume random mating and a large population size (H-W equilibrium), what are thegenotype frequencies in the F1 generation?
Describe the structure, function and location and permeability characteristics of the capillaries, sinusoids, and cappillary beds.
Spcies in which sex is determined by the number of chromosme set, males are haploid, females are diploid, are__________. after meiosis of the microsporocyte in male plants the are______ haploid microspores of which ________ survive. after mitosis h..
use chi square analysis to test your model - how could you explain this inheritance at the molecular level.
There is evidence that viruses are important in providing a way to obtain nutrients from dying organisms that lysed after viral infection. Find specific examples of ways in which viruses might play vital roles in ecosystems.
Which of the criticisms would be addressed by using a swan-necked flask instead of the unsealed flask. Develop a hypothesis to consider how a decrease in precipitation on Darwin Island might affect beak size and develop a hypothesis to explain how a ..
What are the common structures of all amino acids? What structure is unique for each amino acid? How many natural amino acids exist?
What is the benefit of good nutritional support with cancer patients?
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