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A mutation that is due to a dominant allele causes guinea pigs to lose their body hair. A breeder is trying to establish a colony of mutant "hairless" guinea pigs to sell to pet stores. He has a male mutant guinea pig that he wants to use for the breeding. However, due to an error in record keeping, he is uncertain of the mutant male's genotype. He decides to mate a true-breeding normal guinea pig with the mutant male and notices that 100% of the offspring (F1 generation) have the hairless mutant phenotype.
The cross that was conducted is often used by breeders to determine the genotype of an individual that shows the dominant trait. What is the name of this specific cross?
The hairless mutation is dominant and it occurs because there was a deletion of the 3 bases that are bolded in the coding sequence of the gene - 5' CATTGGTA 3'. The deletion or removal of the bases is a mistake or error that occurs during which phase of the cell cycle?
The mutation in the above coding sequence causes the protein that is responsible for hair follicle stimulation in guinea pigs to be non-functional. This protein is made and secreted by skin or epidermal cells. What organelle would produce this protein?
Inheritance and Genetic Engineering-In 1918, an influenza pandemic that originated with avian flu killed 50 million people. Researchers isolated samples of that virus from bodies of infected people preserved in Alaskan permafrost since 1918
One way methane is produced is via reduction of carbon dioxide, which serves as electron acceptor, with molecular hydrogen, which serves as electron donor.
A standard procedure in purifying tubulin is to extract the tissue on ice, then add GTP and warm the tissue extract to 37°C. The warmed extract is then centrifuged at a speed insufficient to pellet average sized proteins, but sufficient to pellet ..
For a new mutation arising in the XYZ gene designated XYZG287 there is a linked allele, QRS2 ~100,000bp away on the same chromosome. After twenty generations find the estimated linkage disequilibrium.
Differences between endotherms and exotherms. Definition and examples of epithelial tissue. (provide 1 example) Definition and examples of connective tissue. (provide 1 example)
Baby James was born via a normal spontaneous vaginal delivery at 36 weeks gestation in a small community hospital.
What is pathogenesis? What are the steps involved in pathogenesis? What are virulence factors? List and describe the different types of virulence factors
Suppose that the cell membrane is permeable to water but not to ions, Explain what will happen to the cell in terms of osmosis. If the membrane were permeable to ions,
Women are the fastest growing population of smokers. Why are more women smoking than ever before? Are there any unique concerns for women smokers?
3.Read the paragraph below (Adapted from the Emperor of all Maladies by Sidddhartha Mukherjee)
Compute the number of "net ATP" molecules obtained the anaerobic conversion of each of the following sugars to lactate.
Define and compare and contrast populations, communities, and ecosystems. You must list similarities and differences to receive full credit.
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