network profile
| bio | website | jkadlubowska.tumblr.com |
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| location | ||
| age | ||
| visits | member for | 8 months |
| seen | May 9 at 14:54 | |
| stats | profile views | 5 |
SAHM of two, including a one-in-a-million Krabbe boy surviving his 4th year in good health.
Molecular biology MSc.
Wife of Tadeusz.
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Apr 22 |
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Two brown-haired people have two children, P and Q. P has blond hair. Q has brown hair. What is the probability that Q is heterozygous? Then you have one more argument: this was probably a high school homework, so it has to use what kids learn about Mendelian heredity, not something deeper and more elaborate. |
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Jan 26 |
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What prevents a pregnant woman's immune system from recognizing her fetus as nonself (and attacking)? Right now I don't remember the full story, but part of it is that pregnant women are somewhat immunosupressed and there is something like a layer of NK cells around the placenta making sure nothing attacks it. Not very practical to adapt to organ transplants. |
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Jan 22 |
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Why is the Hydra Biologically Immortal? @shigeta now I have to search those sharks! |
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Jan 7 |
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Can positive and negative blood type of a couple lead to miscarriage? I would add one more thing - generally the longer they wait before trying again, the better chances fo a Rh+ foetus. Memory cells slowly die and in my country 5 years after last pregnancy with problems a Rh- woman's pregnancy is considered normal risk. Still - a specialist will tell you more and help your sister. |
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Dec 24 |
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Chromosome 2 fusion? I'd really like to give you more than just one upvote. |
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Dec 22 |
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Chromosome 2 fusion? You are describing two processes - one of general fusion happening now and then throughout history (which is common) and one of specific fusion, that was supposed to happen at a certain time in human evolution history (which is not sure, but possible). |
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Dec 19 |
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How many people are required to maintain genetic diversity? I am no expert on dogs, but did learn a bit about in- and outreeding. Each dog breed is either open or closed. In a closed breed, only offspring of animals already belonging to this race belong to the race. In an open breed any animal that looks similar enough (or has other important traits, characteristic for the breed) can be a parent of a "breed" litter. Under certain circumstances (e.g. too few animals in the breed, too bad overall health of the breed) a closed breed can be opened and after the problem is solved, closed again. |
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Dec 3 |
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How much weight/volume do microbes occupy within the human body? Just human intestines have over a kilogram of bacteria! A good enema will leave you 2kg lighter and that's mostly bacteria. |
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Nov 25 |
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In a human, what non-germline cells have the highest/lowest mass? Long human axons are up to 20um in diameter, their bodies are very small, so I think we can assume, that such a very long human axon is a long, thin tube of 20umx1m. This means it's volume is about 31,400,000um^3. If a large adipocyte is 0.2mm (200um, same source as previously) in diameter and a sphere, it is 4,190,000um^3. So yes, an extremely long axon is larger than a large adipocyte, but I could go on searching for a largest adipocyte known to science and I'm almost certain, that I could find something larger ;) |
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Nov 23 |
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In a human, what non-germline cells have the highest/lowest mass? Quote: Definitely by mass @Rory M♦ – joseph_morris 2 days ago |
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Nov 23 |
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In a human, what non-germline cells have the highest/lowest mass? Right, I forgot about that one. I think I just focused on adult cells. |
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Nov 5 |
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Tuna fish in Baltic sea? I know some french, so it's not a big problem. The problem is, that Le Figaro is quite far in the Science News Cycle (phdcomics.com/comics/archive.php?comicid=1174#), so if it's the only link you can find, is very weak. I searched on ncbi and found nothing on tuna living in the Baltic sea, but I don't know how broad is their database - generally I used it when I was a biotechnology student plus for some medical research for my family - not much of ichtiology. |
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Oct 29 |
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Is there any evidence that a virus can modify human evolution I think it did, but right now this is just a vague memory of an Evolutionary Genetics lecture. I'll find more time tomorrow, and try to locate my notes and the actual data. |
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Oct 28 |
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An unexpected mushroom in my garden Ooo! I did't even know about gardening :) Thanks! |
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Oct 10 |
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Fetal development, gastrulation and embryonic disc Second picture doesn't mention mesoderm. Look closely at the titles. It's just that colour schemes are different, so one thing is blue in the first one and another in the second one. |
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Sep 22 |
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Do humans sneeze or cough in their sleep? Babies may sneeze, cough and vomit while asleep, but it is not common even when they are ill. No reference, this is just my personal experience. I would think it's a matter of control over body muscles, babies have limited control (my kids would very often burp or sneeze and pass gas at the same time), but as they grow they learn to keep certain muscles in a certain state while asleep. |
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Sep 21 |
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Are some non-coding RNA spliced? One of my teachers considered all "functional" RNA coding. |
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Sep 19 |
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How are long time periods measured in biological systems? What I meant was that in G1 there is just one copy of the whole genome, so not enough to divide between two daughter cells. During S phase the second copy is produced (and some cytokines and CDKs used), so that during G2, when cytokines and CDKs necessary for cell division are accumulated, all the time there are two copies of the genome - enough to perform a cell division. Sorry about the misleading description, I found this place only today and haven't been using my Molecular Biology Explaining Skills in 2 or 3 years. I'll be better :) |
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Sep 19 |
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Are some non-coding RNA spliced? Sure. Some general information on pre-tRNA and pre-rRNA processing from Molecular Cell Biology: ncbi.nlm.nih.gov/books/NBK21729 |
