Otitis media may lead to dangerous meningitis in children due to infection with
A) Streptococcus agalactiae.
B) Streptococcus pneumoniae.
C) Streptococcus mutans.
D) Enterococcus.
E) Mycoplasma pneumoniae.
B
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What are the characteristics of angiosperms? Check all that apply.
_____ Seed production. _____ Flower production. _____ They do not produce fruit. _____ They produce embryos.
What are the three major types of RNA and their functions? What would happen to translation if each type of RNA were degraded?
What will be an ideal response?
The loss of plant biodiversity, including the wild relatives of crop species, is harmful because these wild relatives
A) feed most of the world's population. B) may be suitable for domestication and regional production. C) are often tastier than existing crops. D) are a source of genetic diversity that could be used to modify or bolster existing crops.
Using Northern and Southern blot techniques, you study a gene, CAE1, that seems to be associated with lung cancer. Your probe in both blots is a 32P-labeled single strand DNA that can base pair with the CAE1 RNA and with the CAE1 gene
You isolate DNA and RNA from brain, heart, lung, and cancerous lung tissue. The DNAwas cut into DNA fragments with a restriction endonuclease before electrophoresis. The results of the blots are shown here. Which one of the following is an observation or conclusion consistent with the data? A. There are fewer CAE1 genes in brain tissue compared to heart tissue. B. The DNA sequence of the CAE1 gene in lung cancer cells is different than in other tissues. C. The amount of CAE1 RNA in lung cancer cells is higher than in other tissues. D. The amounts of all RNAs in heart cells and normal lung cells are the same. E. Deleting the CAE1 gene in all tissue types would be a possible cancer cure with little or no side effects.