Which of the following statements about single nucleotide polymorphisms (SNPs) is correct? (Choose all that apply)
A. For some disorders, multiple SNPs plus
environmental factors are necessary in order
for the disorder to present itself.
B. Genotyping SNPs instead of sequencing
entire genomes allows researchers to find
correlations between genetic risk factors and
disease.
C. SNPs are useful in the diagnosis of a
disease but not in the prediction of an
individual's risk for acquiring that disease.
D. Individuals who are heterozygous for the S
allele in the ?-globin gene are more likely to
develop sickle-cell anemia than individuals
who are homozygous for the S allele in the ?-
globin gene.
E. The presence of an SNP in an organism's
genome when compared to the "standard"
genome of that organism means that a
disease condition will develop.
A,B,C
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Plant cell growth is confined to:
A. flowers. B. meristems. C. within the cell walls. D. photosynthetically active tissues.
Removing plants from an area, as we do when we harvest crops, removes a great deal of nitrogen. One of the ways farmers enable soils to naturally recover is:
A. adding human made fertilizer. B. planting the field with legumes. C. adding bacteria to the soil. D. leaving the soil bare, removing any plants that would consume nitrogen.
Which agents exert antimicrobial activity via oligodynamic action?
a) Aldehydes b) Heavy metals c) Peroxygens d) Nitrates
Some activators do not have an activating domain. How can they function as activators?
What will be an ideal response?