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Question 1: What are the characteristic of synaptic/receptor potentials? Question 2: How can an action potential travel long distances without decrement but synaptic potentials can't?
Question 1: Why would you want to produce plants that can tolerate salt? Question 2: How does Biotechnology helping the world?
What was the purpose of adding methotrexate to the cells expressing a genetically-engineered Dihydrofolate Reductase enzyme in the mitochondrion-targeting experiment? What did the experiment demonst
What is the significance of microbiology in the hospital setting? How are Koch's Postulates used in medical practices and medical microbiology?
Which type of RNA polymerase produces RNA molecules in bacteria? RNA polymerase III only, RNA polymerase II only, RNA polymerase only, RNA polymerase I, II, and III, RNA polymerase I, and III only
What is the function of transcription factors? To direct mRNA from the nucleus to the cytoplasm, To initiate binding at the Shine Dalgarno sequence, To serve as sequences where RNA polymerase binds, T
Question 1: What was the contribution of Archibald Garrod to the discovery of gene function? Question 2: Outline the experiments of George Beadle and Edward Tatum (actually Adrien Srb and Norman Hor
Testicular biopsy shows sparse, completely hyalinized seminiferous tubules with a complete absence of germ cells and only rare sertoli cells. Leydig cells are present in large clumps between the hya
Question 1: What organism did Mendel study? a)Roses b)Ants c)Peas d)Yeast Question 2: A nucleus is built around chromatids which have separated. This occurs during which stage of meiosis? a)Telophase
Sex-linked disorders: a)are always dominant are b)always recessive c)can be either dominant or recessive d)are neither dominant nor recessive
The use of sunscreen when outdoors for long periods of bright sun will help to reduce the risk for skin cancer by reducing which of the following events?
Of the following characteristics of neoplasms, which implies the best prognosis A.Increased expression of laminin receptors B.Increased cathepsin expression C.Decreased apoptosis D.Decreased doubling
Question 1: Describe the changes that occur in a Xenopus embryo at the midblastula transition (MBT).
How might the loss of a tumor suppressor gene function yield an outcome that is(at the cell level) indistinguishable from the acquisition of an active oncogene?
Question 1: What are the genotypes of the two true-breeding purple plants? Question 2: What phenotypes with corresponding ratios would you expect in the F2 generation?
Question 1: What are the 2 main justifications (or types of experiments) for collecting RNA-Seq data? Question 2: Which DNA polymerase is responsible for the removal of the RNA primers at the origin
Question 1: Discuss the bar-headed geese's special hemoglobin adaptations ? Question 2: What are the 3 mechanisms underlying ion selectivity of the channel?
Eye color in the fruit fly Drosophila is controlled by a locus with a multiple allelic series. A fly population which exists in the wild is known to possess six different alleles for the eye- color
Question 1: What is the role of ZP proteins in mammalian fertilization? Question 2: Which of the following procedural errors would result in lawns (everything growing) when conducting and Ames test
Question 1: What is the protein associated with biotinidase deficiency? Question 2: You learn that a certain strain of bacteria has an interesting replication pattern. Every 5 hours, the number of b
Question 1: Why might an animal cell burst in a hypotonic solution and a plant cell would not?
Question: Oxygen is produced during the light reactions when a)ATP is converted to ADP b)CO2 splits apart d)water is split
Question 1: Why is a bar graph more appropriate than a scatter plot or line graph? Question 2: Genetic disorders are predominantly recessive because: a. mutant genes are able to persist in the p
Question 1: List and discuss three major types of signaling pathways. Question 2: With regards to HIV, how many viral particles are needed to infect a new host and how long the HIV virus is stable o
How to do presentation of coffee plant? Name the amino acid found in wild type (non-mutated) ras at positions, 12, 13, and 61. Is the same amino acid conserved at each site among the three isoforms?