684 Answered Questions for the topic microbiology
Microbiology
04/23/19
Can heat kill all microorganisms?
Microbiology
04/22/19
What happens to a cell when the nucleus is removed?
How to understand influenza strain designations?
What do the strain designations for flu mean?
For example avian flu is classified as `H5N1`, what do the letters `H`, `N` and numbers `5`, `1` mean? Is it more than a simple string-identifier?
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Microbiology Virology
04/21/19
Viruses are exceedingly small and round and simple with few genes, with the exception of which of the following?
Choose at least one answer: a) Phycodnaviruses of algae, b) Smallpox viruses with a brick shape, c) Ebola with very extended filaments, d) Small round viruses of diarrhoea
04/20/19
Does freezing microorganisms such as probiotics kill them?
Does freezing microorganisms such as probiotics kill them? If not, what is the process that allows them to "come back to life" after the temperatures are increased?
As an example, lets say you...
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04/20/19
True or False. In DNA, the bases pair A T and G C; this complementary base pairing is the key to storage, transfer, and use.
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Microbiology
04/19/19
Why is it important to understand the complex interplay between microorganisms and their host?
Microorganisms and host interactions
Microbiology Microbiology And Science
04/19/19
Protein as the genetic info
Why scientists prior to the 50's argued protein as the genetic info
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Microbiology Biochemistry
04/19/19
Why don't antiseptic agents kill 100% germs?
I've seen innumerable antiseptic, mouthwash, handwash advertisements that claim to be able to eliminate as much as 99.9% of all germs over a surface...but why not the remaining 0.1% (i.e- why can't...
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04/17/19
Choose the all the types of RNAs and their functions in translation.
A. rRNAs are templates that provide coding information to form proteinsB. rRNAs are ribozymes that catalyze the addition of amino acidsC. mRNAs are adaptor molecules that contain amino acidsD....
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04/17/19
From the following list, choose all the parts that are present in an mRNA that is ready to be translated.
A. Promoter SequenceB. IntronsC. Untranslated regions (one at 5' one at 3')D. 5' capE. Poly(A) tailF. Exons
What is the difference between a promoter and a start codon?
A. Promoters identify translation start sites on an mRNA while start codons are regions of DNA where transcription starts.B. Promoters are regions of DNA where transcription starts while start...
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DNA is a double-stranded helix. Which strand is involved in transcription?
A. Coding strand (runs in the 3’ - 5’ direction)B. Template strand (runs in the 5’ - 3’ direction)C. Template strand (runs in the 3’ - 5’ direction)D. Leading strand (runs in the 3’ - 5’ direction)
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04/16/19
How do baby animals that primarily subsist on cellulose get their initial gut flora?
In the case of mammals like giraffes and koalas, is that bacteria common on the plants they eat so when a baby starts to try to stick something besides its mother's milk in its mouth, it can't...
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04/15/19
Do all bacterial cells have a double membrane?
I’m reading that gram positive and negative bacteria have an inner plasma membrane surrounding the cytoplasm, then a periplasmic space, then an outer membrane. How does this compare to my general...
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Microbiology
04/14/19
Why aren't viruses in a biological kingdom like bacteria?
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Microbiology
04/13/19
Why is mitochondra the "power house" of eukaryotic cells?
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,...
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Microbiology
04/12/19
What are the different branches of microbiology?
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