Microtubules have an outer diameter of

A) 7 nm.
B) 8—12 nm.
C) 25 nm.
D) 7 mm.
E) 25 mm.


Answer: C

Biology & Microbiology

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The production of large quantities of a particular DNA sequence is known as gene ________.

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

Biology & Microbiology

The locus B on the X chromosome of a malaria-carrying mosquito shows a 49% recombination rate with respect to the locus M

Since a recombination rate of 50% is essentially indistinguishable from independent assortment, you might be tempted to look for a locus that falls between B and M. Before you decide to do all that work, you run a chi square test to determine the P value of your experiment. Which of the following P values would be most likely to tell you that you should accept the conclusion that locus B and locus M are, indeed, 49mu apart and that another locus is not necessary? A. P = 0.45 B. P = 0.07 C. P = 0.05 D. P = 0.0007

Biology & Microbiology

Human plasma is mainly composed of:

a. albumin b. red blood cells c. white blood cells d. water e. dissolved ions, sugars, and hormones

Biology & Microbiology

The types of living organisms on Earth have changed over time-new species have originated and existing species have disappeared. This is an example of

A. speciation. B. extinction. C. macroevolution. D. alternation of generations. E. hybridization.

Biology & Microbiology