Microbiology Answers

what is the meaning of OP50 in Escherichia coli OP50?

Which cells, in humans, have the highest concentration of mitochondria and ribosomes? Please give the list of cells In descending order .e.g. muscles, liver etc.
Thanx

i want to ask about my saminar topic??please give me the suggesion of outline about animal interaction with microorganism

Given an amino acid sequence (amino acids linked together), can one predict a unique corresponding mRNA nucleotide sequence (nucleotides linked together)? Explain how you arrived at your answer and give an example to illustrate.

What role do the existing strands of DNA play during the synthesis of the new DNA strands? Use the following sequence of double stranded DNA to illustrate how the existing and new strands are related after replication of the molecule (label which are the new and old strands).
3' GATTACAGA 5'
5' CTAATGTCT 3'

How do bacteria survive under conditions of starvation?

How does a capsule protect a bacterial cell

essay Provide evidence to substantiate the hypothesis that eukaryotic cells evolved from prokaryotic cells

Bacterial generation times were calculated in the media shown below.
All media were prepared with tap water and incubated aerobically in the light.



Generation times(min.)
Medium Escherichia coli Pseudomonas
aeruginosa Lactobacillus Nitrobacter
0 0 0 80
Glucose 100 0 0 0
Glucose, 82 0 0 0
Glucose, , 56 200 0 0
Glucose, ,
43 100 0 0
Glucose, , ,
, 8 amino acids 28 40 0 0
Glucose, , ,
, 19 amino acids 25 25 80 0



Compare and contrast the growth requirements of the bacteria listed in the table. Which of the media, if any, are chemically defined?
Essay answers are limited to about 500 words (3800 characters maximum, including spaces).

a certain disease haa a mortality rate of 75%. Two patients suffering from the disease are selected at random. What is the probability that at least one of them will recover?