Nitrification and Agriculture
What will be an ideal response?
•Nitrification is a significant agricultural issue.
•Nitrates are readily leached from soil into groundwater.
--Nitrate contaminated water can cause methemo-globinema ("blue baby syndrome") due to growth of nitrite-producing bacteria in infant stomach.
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Which of the following is inhibited by DNAse?
A. Transformation B. Conjugation C. Transduction D. None of the answers are correct
Bumblebees pollinate M. lewisii, whereas hummingbirds prefer the M. cardinalis. If, by chance, a hummingbird carries M. cardinalis pollen to M. lewisii, the resulting hybrid offspring are viable. M. lewisii and M. cardinalis are different species due to
A. independent assortment. B. adaptive radiation. C. gradualism. D. postzygotic barriers to reproduction. E. prezygotic barriers to reproduction.
Small sac under the liver: stores bile________________
Fill in the blank(s) with the appropriate word(s).
The trait for red hair is recessive, meaning that when a person expresses two copies of this allele they have red hair. What can be said about the phenotype and genotype of a red-haired individual versus a brown-haired (dominant) individual?
The phenotype of an individual with red hair does not directly correlate to the genotype, whereas the phenotype of a brown-haired individual provides direct information about his genotype. For both brown-haired and red-haired individuals, the genotype can be determined simply by observing the phenotype of the individuals. The phenotype of an individual with red-hair allows one to know his phenotype. An individual with brown hair also has a phenotype that gives enough information to deduce his genotype. The phenotype alone can never imply anything about genotype for either individual. The phenotype of an individual with red-hair allows one to know his phenotype, whereas deducing the genotype of a brown-haired individuals would require a closer look at generational breeding patterns.