An organism that contains foreign DNA, which was inserted into its own genetic material, is called
A) polygenic. B) transgenic. C) foreign. D) electrophoresed.
B
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Answer the following statements true (T) or false (F)
1. Skeletal muscle fibers have more than one nucleus. 2. order for something to be considered a skeleton, it must contain bone or some other hard substance. 3. Endoskeletons may be involved in directly protecting the body surface. 4. You would expect to find higher myoglobin levels in oxidative muscle fibers than in glycolytic muscle fibers.
Embryonic development begins with a single egg fertilized by a single sperm forming a zygote. The
zygote then undergoes mitosis; how many cells would be present at the conclusion of 4 mitotic divisions?
a. 2 b. 4 c. 8 d. 16 e. 32
A tubal ligation is a surgical procedure in which the uterine tubes are severed, and then sealed with a laser. How would this cause sterility?
A. Oocytes cannot be produced by meiosis. B. Oocytes cannot move to the uterus. C. Oocytes cannot be produced by mitosis. D. A woman cannot have an orgasm. E. The ovary stops producing estrogen.
You are working on a project that involves the direct observation of DNA molecules. The microscope that would give you the best information at this time would be the
A) light microscope. B) phase-contrast microscope. C) transmission electron microscope. D) digital video microscope. E) fluorescent microscope.