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1. How is sex determined in grasshoppers? Can you find other examples of organisms with a similar system of sex determination?
2. Some marine shellfish, such as limpets, become either male or female depending on where they grow. What makes one limpet a male and another a female?
3. Are there other organisms whose sex is determined by environmental factors and not by genetics factors?
4. Certain human chromosomal aberrations that occur during meiosis result in eggs or sperm with two copies of the X chromosome. What happens if that gamete is fertilized? What syndrome is characterized by an XXY genotype? What syndrome is characterized by an XXX genotype? What can you learn about this syndrome?
5. Another type of human chromosomal aberration results when a person inherits one X and two Y chromosomes. What event must occur during meiosis for this to happen? What syndrome is characterized by an XYY genotype? What can you learn about this syndrome?
Spatially explicit model shows no evidence of admixture between Eurasians and Neanderthals
If repressor tetramer uses only two of its subunits to bind to an operator sequence, why is tetramer formation so important to the control of lac operon gene expression.
Explain how many kinetochores are there within the human cell at mitosis? Surprise, your boss has invited himself or herself to dinner! All you have is some wilted, day old lettuce.
Describe oxidative and non-oxidative branches of the pentose phosphate pathway and distinguish between these branches in terms of their roles in producing NADPH for biosynthesis reactions or 5-carbon sugar for mucleic acid synthesis.
In maize, a dominant allele (A) is essential for seed color as opposed to colorless (a). Another gene has a recessive allele (w) which results in waxy starch, as opposed to normal starch (W).
Joe Average has just been frightened by a very loud noise as he was taking a very difficult physiology exam. In response, his adrenal glands have released a large amount of adrenaline into his circulation. Which of the effects would you expect to ..
define the genetic information in the nucleus. The protein is partially glycosylated within the lumen of ER
Speculate on and/or research potential mechanisms which would afford the improved processing. Speculate on and/or research potential mechanisms.
The use of PCR and genetic approaches in biotechnology
Degrade a monoglyceride that has an 18-carbon fatty acid attached to it by Ester bonds. You will have to degrade the glycerol component followed by the fatty acid in presence of O2.
Why are algae important in nature. Joan and Alex Smith have five daughters who are quite dissimilar in appearance and talents. Examine why this occurs based on the 2 events in meiosis that enhance genetic diversity.
History of stem cell legislation and how does it compare to comparable statutes in the rest of the world? Talk about what the current legislative state of affairs is and where the law on stem cells in the United States should go in the future and why..
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