Shred
  • Member for 3 years, 7 months
  • Last seen more than a month ago
Phospholipid membrane fluidity if phospholipid had one type of fatty acid
3 votes

Cell membrane doesn't have just phospholipid inside. Components who influence fluidity in cell membrane are: 1) Fatty acids length 2) The grade of unsaturation of these fatty acids 3) Presence of ...

View answer
Can you increase the microbiota in an insect?
2 votes

The answer is absolutely yes. There are 3 main ways: Faecal transplant: faecal sample from other insect could be transplanted in order to colonize the gastro-intestinal tract Injection of bacterial ...

View answer
With over 400 chromosomes, does mitosis in a species of butterfly happen in the same way as in humans?
Accepted answer
2 votes

Mitosis was displayed in a lot of organism, also in organism with a very high number of chromosomes. Here's an example of the analysis made in a fish with an average count of 280 chromosomes. Look at ...

View answer
Does night mode on iPhone really help?
Accepted answer
2 votes

Different colors mean different wave lenght and energy, as displayed in the picture. Using Planck's theory, the shorter the wave is, the more energy it carries. On day light, all these wave lenghts ...

View answer
How does one identify a seed's species & variety?
2 votes

Yes, their name are "molecular marker". Every gene carrying a phenotype, quantitative or qualitative, is identified as an allele of every gene encoding for proteins. In order to identify a phenotype ...

View answer
Why is PCR possible to amplify DNA template before Sanger Sequencing for unknown DNA sequences?
2 votes

PCR is used to amplify a sequence included inside two known regions. So, if you're able to clone (for example with recombination) two sequence forward and backward to your sequence, by using PCR you'...

View answer
Truncated ORF3a protein of SARS-CoV2! Why? How does it formed?
1 votes

Your question couldn't be answered using just suggestions: we need proofs. In this study (from which I've quoted the sentence below) authors suggest an implication for inflammation response in patient....

View answer
What makes an E.coli an E.coli, genotype or phenotype?
1 votes

Surely both. Nowadays, with molecular technics avaiable with low effort, the typing is mainly done with genotyping. This can be done using the 16S rRNA gene, which is composed by hyper-variable ...

View answer
Mendelian dominant trait involved with Hypodontia
1 votes

Hypodontia isn't a single gene phenotype, but a poli-genic mechanism involved with epistatic phenomenons and environmental scenarios. The trasmission isn't clear till now, but when you're talking ...

View answer
Regarding detection of pregnancy during post mortem
1 votes

Answer is obviously yes. Here's an article reporting a forensic method used to detect pregnancy using placental markers in a Reverse Transcriptase PCR from a DNA sample. It could be applied in a death ...

View answer
Is it possible to prove that a hand sanitizer can kill 100% of a person's germs?
1 votes

As pointed by Allure, there's no way to say that a chemical agent is 100% efficient against all kind of microrganism . That's because of high rate of mutations by these, and a strong evolutionary ...

View answer
When was it understood that a male haemophilia sufferer can't pass it on to his sons?
Accepted answer
1 votes

Using Google Scholar, I've found the oldest publication on this item. 1911 - "The pathogenesis of hereditary haemophilia". In this article you'll find a complete synthesis of all the works done about ...

View answer
difference between trisomy and partial trisomy
1 votes

Any organism with a partial polyploidy has got some tissues with a different number of chromosome set, unlike the rest of cell tissues. These situations are often consequences of meiosis error and ...

View answer
human gene PCR primers database
1 votes

Answer is, obviously, yes. Primerbank Here. You can search primers using accession number or Gene-ID

View answer
Why don't cells double gene expression after S-Phase?
Accepted answer
1 votes

When the double strand is duplicated, the old strand (or, in other terms, the template) is methylated : this modification is enough to prevent the bind by the RNApol system and, by so, the ...

View answer
Can CRISPR-Cas9 make changes on a living organism?
Accepted answer
1 votes

Answer is yes, but it depends on which kind of phenotype you're going to restore/change. As you can imagine, using crispr cas9 on an high amount of cells require one condition: edited cells need to ...

View answer
Can Cas13 be used with multiple crRNAs in the same reaction?
0 votes

Answer is no. Because each CRIPSR-Cas(xx) system works as a ribonucleoproteic complex, so they needs to be loaded with a crRNA in order to be working. Functionality is guaranteed while each of the Cas ...

View answer
Error frequency of DNA replication without proof reading activity of DNA polymerase?
0 votes

Klenow Fragment could be used to have a polymerase which lacks the exonuclease activity: not just the 5' -> 3' but also the 3' -> 5' . Lacking the exonucleases activity, the only kind of ...

View answer
What happens to the complementary base when the other undergoes a base substitution mutation?
0 votes

A base substitution mutation often occur during replication of DNA. Remember that the template strand is methylated, in order to understand who will be the new synthetized strand between both. Having ...

View answer
How increased potassium intake increases sodium excretion?
-1 votes

That's because cell membrane could have a protein, called Na/K pump who's able to regulate the level of Sodium/Calcium using the energy gained by the hydrolysis of a phosphate bond from ATP.

View answer
mRNA and Protein relation
-3 votes

Answer is yes, by a logical approach, in superior organism where alternative splicing and post-transcriptional modification alter the protein structure. In bacteria, this thing is not allowed. This ...

View answer