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Q1. A virgin pine forest covers a valley, and one of the inhabitants is a red squirrel species. A large volcanic eruption occurs and separates valley with a huge lava flow that the squirrels cannot cross, thus producing two isolated populations of squirrels. What modify needs to occur for the two populations of squirrels to become separate species?
Q2. Lucy had both her left ovary and her right uterine tube removed surgically at age 17 for the reason that of a cyst and a tumour in these organs. Currently, at age 32, she remains healthy and is expecting her second child. How might Lucy conceive a child with just one ovary and one uterine tube, widely separated on opposite sides of the pelvis like this?
If an albino (autosomal recessive trait) woman is married to a man with normal colouring and they have an albino child, what is a genotype of the man.
ten percent (0.100) of the men in a population in Hardy-Weinberg proportions are color-blind because of an X-linked recessive allele. What proportion of the women in this population do you expect to be color-blind?
Why is the human Y chromosome a marker for only the paternal, not the maternal, human genetic lineage? Please provide a detailed, complete explanation. Also if your answer utilizes reference materials please site the source.
Name the two evolutionary hypotheses that can explain why organisms senesce (1). Pick one of them, and explain how it works (2). Give an example of this hypothesis-you may use a hypothetical organism and/or traits, provided it is realistic (2).
How does the HIV virus make new viral proteins and viral genomes, Which of these processes are carried out by viral vs. human enzymes/structures? How does the virus get out again or be totally eliminated from the body? Remember to focus on the flo..
For a particular assay, you need cells at a concentration of 300 cells per ml. In your flask of cells growing you counted a sample using a hemacytometer.
What will happen to oxygen consumption in a reaction flask after the addition of pyruvate and predict how oxygen consumption will change in the flask upon the addition of pyruvate and ADP?
Discuss the differences you have noticed between old and new Food Pyramid. Provide your opinion if you believe new Food Pyramid will be successful in modifying the eating habits of Americans or not.
Calculate the probability of a diploid individual with the genotype AaBBCc producing a gamete (egg or sperm) by meiosis with the following alleles "A", "B", "C".
What is the function of the trp operon.
Biotechnology permits the use of living organisms or their processes for human needs or purposes. Currently, this topic includes such general examples as cloning,
Which planes when passed through the body would result in two sections, with each section containing a piece of the heart and a piece of each lung?
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