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Question 1: Why double-strand breaks and homologous recombination is a critical event during meiosis I? Question 2: How many nuclei are present at the end of meiosis II? How many chromosomes are in ea
What structure holes the sister chromatids to the spindle fibers? A) cyclin B) centromere C) MPF D) kinetochore E) chromatin
Skin cancers typically develop in the A) subcutaneous layer. B) lower layers of the epidermis. C) lower layers of the dermis. D) upper layers of the epidermis. E) upper layers of the dermis.
The bacteriophage lambda genome can exist in either a linear form or a circular form. The circular form occurs when the 20-bp cos sites (cohesive ends) anneal at their complementary base pairs and a
What would be the consequence of treating the vector, before ligation, with calf intestinal phosphatase? A. It would prevent the plasmid's DNA from reversing polarity during ligation. B. It would prev
Photoreactivation repair is effective only in the presence of visible light. What other repair mechanism is available to repair pyrimidine dimers if visible light was not available? Draw and describ
In most healthy humans, a diet high in cholesterol results in the inhibition of cholesterol synthesis in the body's cells.
What 2 hormones produced by duodenal enteroendocrine cells serve to effectively coordinate digestive functions?
What is the role of ADP in gluconeogenesis? Please explain in thorough detail. what factors may determine whether the inactivation of a TSG occurs at a frequency per cell generation higher than the
Question 1: Provide an explanation in detail of the endogenous role of ADP in Gluconeogenesis. Question 2: Propose a biochemical mechanism for action of "succidin cellbio" in the animal cells.
You expose synchronized tissue culture cells to radioactive thymine throughout S phase (pulse), then wash this material off (chase), and apply autoradiography to the metaphase chromosomes at the sub
Question 1: What combinations of alleles could result from a crossover between BD and bd chromosomes? Question 2: How many nuclei are present at the end of meiosis II? How many chromosomes are in each
Provide some advantages and disadvantages for an individual cell being a part of a multicellular organism verses being a single cell
Energy and Photosynthesis: Question 1: After the experiment which tube had the greatest change in bubble size.Question 2: What do you think is causing the bubble at the top? Explain your answer.
Question 1: Which test tube had a bigger bubble on the top before the experiment? After the experiment? Question 2: What do you hypothesize is causing the bubble at the top?
Question 1: Define blood pressure and how it is measured. Question 2: Explain how the chemoreceptors and mechanoreceptors work to regulate heart rate by regulating blood flow, blood pressure and blo
The common cold, influenza, and other respiratory diseases are some of the most common diseases that infect, sicken, or kill people across the world. Why is the respiratory system so often a center
Question 1: Discuss the importance of a cell and why it is considered the basic functional unit of life. Question 2: Define the function, general structure, and give examples of epithelial tissue: s
Question 1: Discuss in writing the outbreak of Legionnaires' disease in Philadelphia in 1976, explain what happened and what the medical society learned from this event. Question 2: What factor dete
What is the most common symptom of pleurisy and why are deep-breathing exercises often prescribed for pleurisy patients?
A HIV positive patient comes into your office complaining of a persistent cough with blood tinged sputum, chronic fatigue, and fever. The patient is immediately escorted to an open examination room.
Harriet, a 23 year old daycare worker, visits your office. She has questions about the flu vaccine and whether she should be immunized. When she started her daycare job at the end of the previous au
What is another name for the common cold? a) laryngitis b) sinusitis c) anosmia d) epistaxis e) none of the above
Question 1: Hemoglobin has a smaller diameter then albumin but normally no hemoglobin is seen in the glomerular filtrate. Explain why? Qiestion 2: Why is colloid osmotic pressure within bowman's caps
Question 1: What drug is used to treat malignant hyperthermia and what are the mechanisms of action of how this drug works