Synteny can be described as the:
A. degree of conservation between sequences.
B. evolution of orthologs.
C. evolution of paralogs.
D. conserved gene order between two organisms.
E. conserved number of chromosomes between two organisms.
D
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How long does it take to form 1 inch of soil?
A. 1 year B. 10 years C. 50 years D. 100 years E. Hundreds or thousands of years
What is the main form of nitrogenous waste released by mammals to their environment?
a. amino acids b. urea c. ammonia d. nitrate
Genetic methods of detecting microorganisms reveal that the number of bacterial species in nature exceeds previous estimates by several orders of magnitude. In human mouths, for example, it is estimated that 500-700 microbial species are normally
present. Explain why previous estimates were low. What will be an ideal response?
A cell is dyed with stain that reacts with an enzyme found in the lysosome. Based on this, where else would the dye react?
a. endoplasmic reticulum. b. nucleus. c. cytoplasm. d. mitochondria.