Which of the following is best observed by using a compound light microscope?
A. A eukaryotic cell
B. a virus
C. A DNA sequence
D. The inner structure of a mitochondrion
E. A nuclear pore
Answer: A. A eukaryotic cell
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Which of the following is not a function associated with the cytoskeleton?
A) scaffold for support and maintenance of cell shape B) anchoring site for mRNA during transcription C) cell division D) organizes the organelles within the cytoplasm E) signal transducer
During fertilization in humans, sperm reach the egg by traveling through the vagina, uterus, and fallopian tubes. In which body cavity does the sperm locate the egg ?
A. pleural cavity B. abdominal cavity C. pelvic cavity D. dorsal body cavity (cerebral-spinal) E. pericardial cavity
Genetic variability will not occur among offspring if crossing over does not occur during prophase I of meiosis.
Indicate whether the statement is true or false
Outline a procedure for producing a useful new recombinant product
What will be an ideal response?