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Questions 31 to 40 relate to material covered in BIO6033 (Fundamentals of Biotechnology)

Which medium is used to allow some microbes to grow while suppressing others?

Questions 57 to 60 relate to material covered in BIO8033 (Advanced Cell Biology)

Which of the following is the correct sequence of events that occurs along an axon during an action potential?

Give ONE specific characteristic of the cleavage step of early embryo development.

Short Answer Set #2 SA 7. Identify the three types of cytoskeletal elements found in animal cells and provide a general function for each. SA 8. Identify the three pathways responsible for delivering material to the lysosome for degradation. SA 9. Identify three mRNA processing steps that take place prior to nuclear export. SA 10. Identify the three types of cell-surface receptors responsible for converting an extracellular signal into an intracellular response. SA 11. Transmembrane proteins can cross the lipid bilayer by adopting one of two types of secondary structures. Identify both of these folds.  SA 12. Phospholipids are described as ‘amphipathic’. Define amphipathic within this context. 

A scientist measures the temperature of a lake at various depths and finds very little variation between temperatures at the surface and at the bottom of the lake. The temperature measurements were most likely taken in a ________________________________.

The pedigree below shows the inheritance of a rare genetic condition. What is the genotype of individual II-2 indicated by the arrow?   As always, assume individuals marrying into the pedigree do not have the affected allele unless the pedigree holds information to the contrary, and assume complete penetrance and no de novo (i.e., new) mutations.

Identify the specific function of the enzymes of the acrosome.

Phenylketonuria shows autosomal recessive inheritance with a frequency of approximately 1 in 13, 000 births. What is the frequency of the dominant (normal) allele? p2 + 2pq + q2 = 1