This structure gives rise to lateral roots
a. Casparian strip
b. stele
c. pericycle
d. endodermis
e. pith
C
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How can the complementation test discriminate between two viruses that have a mutation in the same gene versus two viruses that have mutations in the same gene?
A. If the viruses have mutations in the same gene then, depending on the assay, a significant number of plaques will be produced or a significant number of plaques will have a wildtype phenotype. If the mutations are in the different genes few, if any, wild type plaques will be seen.. B. If the viruses have mutations in different genes then, depending on the assay, a significant number of plaques will be produced or a significant number of plaques will have a wildtype phenotype. If the mutations are in the same gene few, if any, wild type plaques will be seen C. If the mutations are in the same gene the complementation test will result in recombinant viruses that are wildtype but if the mutations are in different genes no recombinant viruses will be produced. D. If the mutations are in different genes the complementation test will result in recombinant viruses that are wildtype but if the mutations are in the same gene no recombinant viruses will be produced.
A woman heterozygous for color blindness (an X-linked recessive allele) marries a man with normal color vision
What is the probability that their first child (male or female) will be color blind? a. 25% b. 50% c. 75% d. 100% e. 0%
Enzymatic reactions convert products into substrates
a. True b. False
In comparison to the upper intertidal zone, species in the lower intertidal zone are more apt to
A) be desiccation tolerant. B) have a lower metabolic rate. C) have lower resource requirements. D) be better competitors.