1,033 reputation
310
bio website jkadlubowska.tumblr.com
location
age
visits member for 2 years, 6 months
seen Feb 16 at 18:28

SAHM of two, including a one-in-a-million Krabbe boy surviving his 5th year in good health.

Molecular biology MSc. Pedagogy BA.

Wife of Tadeusz.


May
25
comment Hardy-Weinberg applied to three alleles and stimation of allele frequencies
So you omitted some data of this question? The thing is, you can substitute whatever you want, e.g. 1-p=q+r or p=1-q-r, but that leads you nowhere if you don't have any more data. Something like p^2+q^2+r^2=3pq+3pr+3rq is crucial to solving this problem. Anyway - these are two equasions, you still need a third to ba able to assign specific numbers to p, q and r.
May
24
comment Hardy-Weinberg applied to three alleles and stimation of allele frequencies
Why do you need to separate homozygotes from heterozygotes?
Apr
22
comment 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.
Jan
26
comment 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.
Jan
22
comment Why is the Hydra Biologically Immortal?
@shigeta now I have to search those sharks!
Jan
20
asked Why does yawning impair hearing?
Jan
12
answered What is the inbreeding coefficient for the female offspring of a sib-mating in a haplodiploid system?
Jan
7
revised Can positive and negative blood type of a couple lead to miscarriage?
This would be true only if the (+) parent BY DEFINITION was a heterozygote.
Jan
7
comment 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.
Jan
7
suggested approved edit on Can positive and negative blood type of a couple lead to miscarriage?
Jan
4
revised Do animal cells have vacuoles?
added 311 characters in body
Jan
4
answered Do animal cells have vacuoles?
Jan
4
revised Why Do Ruminants Require A Multi-Compartment Stomach To Digest Food?
added 90 characters in body
Jan
4
answered Why Do Ruminants Require A Multi-Compartment Stomach To Digest Food?
Dec
24
comment Chromosome 2 fusion?
I'd really like to give you more than just one upvote.
Dec
22
comment 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).
Dec
19
comment 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.
Dec
18
answered How many people are required to maintain genetic diversity?
Dec
3
awarded  Critic
Dec
3
comment 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.