An individual presenting with a mysterious disease affecting his connective tissues is found to have numerous defects in multiple regulatory proteins. If these proteins are characterized by highly abnormal patterns of glycosylation, to what cell structure might the patient’s disease most likely be attributed?

Which of these features would allow you to distinguish a terrestrial nematode (roundworm) from an earthworm (annelid)?  Select all that apply.

Spirogyra are unicellular, asexually reproducing, eukaryotic protists. Given its mode of reproduction, which of the following should be expected to occur in Spirogyra at some stage of its life cycle?  Select all that apply.

In a sample of cells, the DNA content immediately following mitosis is measured and is equal to 28 picograms of DNA per nucleus. How much DNA would be found in each nucleus at the end of S and the end of G2?    

Robber frogs (Brachycephalus sp.) have been experiencing large die-offs due to an infectious organism. This organism is multicellular, has a filamentous body form, cell walls made of chitin and some of the cells are flagellated. Genetic analysis shows that the organism has haploid nuclei. Based on these characteristics, this disease is most likely caused by ________________________________.

Stachybotrys chartarum is an ascomycete fungus that causes respiratory disease in infected people.  You are working to develop a drug to treat this infection.   At which stage of the fungus’ life cycle would reproduction be stopped if a drug that prevents the fusion of nuclei was applied?

Which of the following are characteristics of ALL chordates?  Select all that apply.

A cell in G2 of mitosis has 22 chromosomes in the replicated state. How many centromeres are in this cell?

The enzyme maltase is a digestive enzyme that digests the sugar maltose.  It is produced in cells of the salivary glands and excreted into the saliva of the mouth.  Which of the following is the predicted pathway for the production of maltase?  

An animal embryo at the eight-cell stage has cells that are arranged spirally and exhibit determinate development.  Which of the following can this embryo develop into?