If you were to replace the phosphate group of a phospholipid with a fatty acid chain, you would have

A. glycerol.
B. a triglyceride.
C. cholesterol.
D. glycolipid.


B

Biology & Microbiology

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Seafloor spreading is the result of:

a. vertical movement along the lithosphere. b. lateral movement of the crust. c. growth of the midocean ridge. d. subduction. e. horizontal uplift of the continents.

Biology & Microbiology

In the universal ABO blood grouping system, there are four phenotypes - A, B, AB, and O - which are determined by

three different alleles. The presence of three alleles in the ABO blood grouping system is an example of ____.

a. a polymorphism b. genetic drift c. the bottleneck effect d. a dimorphism e. the founder effect

Biology & Microbiology

All of the following can pass through a healthy placenta EXCEPT which one?

A) water B) nutrients C) oxygen D) some antibodies E) blood cells

Biology & Microbiology

Base substitutions of the (first/second/third) base of a codon frequently produce silent mutations.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology