Who is considered the "grandfather of genetics"?
a) James Watson
b) Gregor Mendel
c) Charles Darwin
d) Lewis Pasteur
Answer: b) Gregor Mendel
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Flagella move:
A. in an oarlike motion by the motor protein dynein sliding microtubules past each other. B. in an oarlike motion by the motor protein kinesin sliding microtubules past each other. C. in a whiplike motion by the motor protein dynein sliding microtubules past each other. D. in a whiplike motion by the motor protein kinesin sliding microtubules past each other. E. in a whiplike motion by the motor protein dynein sliding microfilaments past each other.
Answer the following statements true (T) or false (F)
1. The membrane attack complex is involved in specific immune defense mechanisms. 2. During inflammation, nitric oxide secreted from endothelial cells causes swelling of the surrounding tissue. 3. The three major types of pathogens are bacteria, viruses, and cancer. 4. Helper T cells activate both B cells and cytotoxic T cells. 5. The first stage of a specific immune response is the activation of B cells and T cells.
All ________ have two very different types of nuclei within their cells, small micronuclei and larger macronuclei.
A. sporozoans B. protists C. oomycetes D. ciliates E. dinoflagellates
Consider the DNA sequence GATTACA. If the strand with this sequence forms a double helix with
another DNA strand, the sequence on the other strand should be ____.
a. TCGGCAC b. GATTACA c. ACATTAG d. GTGCCGA e. CTAATGT