Which of the following items demonstrates radial symmetry?
A) a glove
B) a tennis racket
C) a pair of sunglasses
D) an apple pie
Answer: D
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Briefly describe the effect of deposition of antibody or complement on the surface of a pathogen or antigen in relation to opsonization
What will be an ideal response?
The average time it takes for actively dividing human cells to complete one cycle of division and growth, and be ready for another division, is about 24 hours
Given that there are 50-100 trillion cells in a human body, how long would it take to go from fertilized egg to the time the baby is born? A. 45.5 days B. 4.5 days C. 9 months
Chemical selection occurs....
A. when a catalyst speeds up a process that would normally occur at a slower rate. B. when covalent bonds are formed between two previously unlinked molecules, increasing their stability. C. when a chemical within a mixture increases compared to other chemicals in the mixture due to a unique property. D. during the ribozymic phase of coacervate formation. E. after the formation of a membrane and when the DNA is replicated and transcribed.
Which biotechnology tool allows many copies of a specific section of DNA to be made very rapidly?
A. DNA library production B. DNA sequencing C. DNA library screening D. Electrophoresis E. Polymerase chain reaction