Which group(s) within the Alveolata include(s) members that are important in ocean food webs, cause(s) red tides that kill many fish, and may even be carnivorous?
a. ciliates
b. apicomplexans
c. Dinoflagellates
d. A and B only
e. A,B, and C
Ans: c. Dinoflagellates
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Within a single molecule of water, as shown, bonds are formed between oxygen and hydrogen.
A. nuclear
B. hydrophobic
C. hydrogen
D. covalent
E. ionic
Induced pluripotent stem cells are ____
a. produced from normal body cells b. not used for human genetic research c. a major cause of cancer d. grown in the lab to produce clones e. isolated from embryos
Chlamydomonas, although a green algae, is sensitive to an antibiotic, erythromycin
If mt– mating-type alga that is sensitive is mated with an mt+ cell that is resistant, and if the mt+ strain donates chloroplasts, what results do you expect and why? A) All progeny are sensitive because sensitivity is the dominant trait. B) Approximately half the progeny are sensitive because this is the recessive trait. C) All the progeny are sensitive because this is the recessive trait. D) All progeny are resistant because cpDNA is responsible. E) Approximately half the progeny are sensitive because cpDNA is responsible.
Answer the following questions true (T) or false (F)
1. Integral proteins always extend completely through the plasma membrane. 2. The chief component of the plasma membrane is the phospholipid bilayer. 3. The glycocalyx is found just inside the plasma membrane of the cell.