In a cell with 16 chromosomes, you will find _____ sister chromatids after the S-phase of mitosis?

A rare illness in a child was determined to be the result of the production of antibodies to signal recognition particles (SRP) in her muscle cells.  These antibodies destroyed her SRPs before they were able to carry out their function.  Based on this information, which of the following is most likely to occur?       

All of the protists that are called “algaes”

You took a sample of water from a stream that you crossed while hiking in the Allegheny Mountains.  Analysis of the organisms living in the water include an organism that is a heterotrophic decomposer with cell walls made of cellulose and flagella with hair-like structures.  This organism is most likely a ___________________.

A biologist discovers a new species of marine alga that is photosynthetic and can live at depths reached only by blue light.  This alga is most likely a type of __________________________.

True or False?  All organisms considered protists are eukaryotes.

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?