10/26/20

The following results are obtained from a broth dilution test for microbial susceptibility of a bacterial infection in a patient: Antibiotic Growth in culture + drug Transfer to drug-free

Antibiotic Growth in culture + drug Transfer to drug-free culture concentration50 μg/ml No growth No growth25 μg/ml No growth , Growth 12.5 μg/ml No growth , Growth6.25 μg/ml Growth , Growth What... more
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10/25/19

lab report questions

Question 7: summarise the results of your phagocytosis assay, comparing the differences, if any, between what you observe for cells with beads A and cells with beads B.beads A x10 objective:beads A... more
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07/18/19

Fermentation to acetic acid?
How much time is needed for the fermentation to acetic acid production cycle, and the conversion of apple vinegar in a sealed container incubated at 37 °C? Should be in the fully... more
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05/28/19

What are the advantages and disadvantages of using beta-galactosidase compared to luciferase as a reporter gene?
In the University labs, we have used Beta-galactosidase as a reporter gene to quantify the expression initiated by the stress-response promoter in yeast. This was done by exposing one of the two... more
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05/24/19

How is the exogenous DNA protected from degradation during bacterial transformation?
During transformation, a bacterium can take up DNA from its environment. A small fraction of bacterial species are known to be naturally competent, meaning that they can engage in this sort of... more
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04/13/19

Why don't all bacteria have F-plasmids by now?
Some bacteria can undergo gene transfer by conjugation. Conjugation is a form of horizontal gene transfer, meaning from one (unrelated) bacterium to another (in contrast to vertical gene transfer,... more
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02/16/17

Question 2 Not yet answered Points out of 25.00 Not flaggedFlag question Question text Human genetic disorders are not usually evenly distributed among all rac
Human genetic disorders are not usually evenly distributed among all racial and cultural groups due to the different genetic histories of the world's people. One example of such a recessive... more
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02/12/17

using real life example how can i explain cells i know what they are but how can this be applied to the real world
i need atoms moluclers irons and cells cell membranes and living organizams plasima membrane and virus . for human biology how do I apply 3 of these to the real world, i dont care what one you do.... more
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02/11/17

Atoms apply to the real world application in humans
Atoms i need to apply this to a real world applipation?
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02/11/17

Prokaryotic and Eukaryotic Cells i need a real world application
  Prokaryotic and Eukaryotic Cells i need  to apply this to a real world application?
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02/10/17

Research shows that the highest proportion of distracted drivers is under the age of 20 and the next highest percentage group is drivers from 20 to 29 years of
Research shows that the highest proportion of distracted drivers is under the age of 20 and the next highest percentage group is drivers from 20 to 29 years of age. Why do you think younger drivers... more
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02/06/17

How should scarce resources be used to get the most benefit for the greatest number of people? Should efforts emphasize the benefits of education to prevent the
this is about aids.How should scarce resources be used to get the most benefit for the greatest number of people? Should efforts emphasize the benefits of education to prevent the next wave of... more
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01/25/17

Step 4: Design an Experiment on my Hypothesis: The common cold can be prevented by wearing a surgical mask and handwashing An experiment is a carefully
Step 4: Design an Experiment on my Hypothesis:using 2 different groupsThe common cold can be prevented by wearing a surgical mask and handwashing An experiment is a carefully planned and executed... more
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01/25/17

can you do this step for me 3rd on in scientific method using my hypothesis that the common cold can be prevented by wearing a surgial mask and handwashing
Step 3: Formulate Valid Test Criteria and IdeasConsider how you would test your hypothesis. the hypothesis is: the common cold can be prevented by wearing a surgical face mask and handwashing.... more
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11/12/16

Hardy Weinberg
Using the hardy weinberg formula find out the following from the information below.   You are researching a newly discovered species of fish. Fish either have very large fins or very small fins... more
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02/07/16

X-linked genetic question
Drosophila, vestigial wings (vg) is a recessive autosomal mutant allele, and yellow body (y) is a recessive X-linked mutant allele. The wild-type alleles, vg+ and y+ control normal wings and... more
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01/14/16

3. An unknown disease results from a point mutation that causes a nitrogen base to be switched in position three and five of the following DNA sequence (TTACCGG
3. An unknown disease results from a point mutation that causes a nitrogen base to be switched in position three and five of the following DNA sequence (TTACCGGA). The resulting inheritable... more
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02/15/15

mutation/selection balance, mutation rate calculation
If the incidence at birth before selection of a recessive mutation is given (ex. 1 in 90,000), how do you calculate the mutation rate if mutation and selection are balanced in maintaining the... more
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