When genetically modifying plants, is it typically easier to remove traits, or introduce traits?
What will be an ideal response?
Introduce traits
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If Tina is a carrier, what is the chance that she will have a son with Hemophilia A?
a. No chance (0%). All sons would be normal. b. She can expect 50% of her sons to have Hemophilia A. c. All of her sons will have Hemophilia A d. Not enough data is given.
Plants produce biomass by taking in energy, CO2, and nutrients from the environment; consumers eat much of this biomass, but not all. However, ecosystems do not indefinitely accumulate large quantities of organic matter over time. Why not?
What will be an ideal response?
As a doctor, you discover a new virus that prevents the body from creating memory cells. Based on what you know about human defenses against disease, you predict that this virus is infecting and destroying which type of white blood cell?
A) Dendritic cells B) Lymphocytes C) Mast cells D) Macrophages E) Natural killer cells
EcoRI and HindIII are
A. DNA polymerases. B. restriction endonucleases. C. ligases. D. reverse transcriptases. E. palindromes.