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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?
LDL particles have a higher percent content of cholesterol and cholesterol esters than VLDL particles. Describe the catabolism of the VLDL particles that occurs in the circulation and how this accounts for the increased content of cholesterol in t..
Spatially explicit model shows no evidence of admixture between Eurasians and Neanderthals
Large folds in the stomach known ______ increase its surface area and also enable it to fold on itself when empty. The ______ is a valve that enables partially digested food out of stomach into the ______.
Elucidate how at least three organ systems are affected by this increased physical activity and discuss interactions among these systems.
Colchicine causes disassembly of microtubules. What result (if any) may you see on a giant algal cell in which cytoplasmic streaming is occurring.
How do you compute the pH of a solution of lysine if the side chain amino group is 3/4 dissociated.
RNA helicases are required for translation and multiple steps of splicing. What enzymatic activity do these enzymes possess? How is this activity possible to be used in: translation or Splicing.
The man married with a woman whose sister had galactosemia. The woman is now pregnant with their first child. What is the possibility that this child will have galactosemia.
Lack of iron in photic zone of the open ocean restricts the size of plankton populations. Iron is what kind of factor for marine plankton.
The following experiments are carried out using a pure preparation of enzyme that catalyzes palmitate synthesis from acetyl CoA and malonyl CoA in presence of all the cofactors needed for reaction.If the acetyl CoA is labeled at the methyl carbon.
One of the major categories of receptors in the plasma membrane reacts by forming dimmers, adding phosphate groups, and then activating relay proteins. Which kind does this.
Consider you could micro-inject the cytochrome c within the cytosol of the wild-type cells and of cells which were doubly defective for Bax and Bak.
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