Answer the following questions true (T) or false (F)
1. Under ideal conditions, the number of DNA molecules produced during PCR increases exponentially.
2. Sticky-end fragments generated by EcoRI will hydrogen bond to any other sticky-end sequence.
3. The human microbiome is very uniform across the entire species Homo sapiens in all geographic locations.
1. TRUE
2. FALSE
3. FALSE
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Birds generate a lot of heat, especially during flight. Yet the adipose tissue under their skin and the feathers atop their skin make it difficult to eliminate excess heat across the skin
Which of the following alternatives can absorb body heat and eliminate it from the bird most effectively? A) air in the air sacs B) lymph in the lymphatic vessels C) blood in the vessels D) blood in the heart E) urine in the bladder
Mendel's work involved plants that showed incomplete dominance.
a. true b. false
The sodium-potassium pump is primarily responsible for
A. maintaining isotonic water balance. B. the excretion of salts. C. the contraction of muscle fibers. D. the resting potential. E. the action potential.
Bacteria cannot be classified using the biological definition of a species for which reason?
What will be an ideal response?