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Organisms vary widely in the number of chromosomes per cell. The ant, Myrmecia pilosula, has only two chromosomes (one pair) per cell. By contrast, the fern, Ophioglossum, has up to 1260 chromosomes (630 pairs) per cell. This variation among organisms seems to be unrelated to how complex those species are. The precise chromosome number, though, seems to be an important characteristic. So an ant with one pair of chromosomes must have just one pair of chromosomes. And a fern with 1260 chromosomes must have 1260 chromosomes. Any different number results in changes in characteristics that are often so dramatic that the organisms cannot survive.
Aneuploidies
Humans typically have 46 chromosomes (23 pairs) per cell. Human aneuploidies are conditions where the chromosome number is not 46.
Select a human aneuploidy.
Describe the symptoms of this human aneuploidy.
Explain the cellular processes that lead to this condition.
Is it possible to treat aneuploidies in utero?
In your opinion, should we treat aneuploidies in utero?
While a blood sample contains glucose, albumin, and chloride molecules, a normal urine sample contains only chloride molecules. What does this indicate about one of the functions of the kidney?
Find out any media piece (article, video, presentation, song, or other) related to scientific method and describe how it helped to better understand how the scientific method is used to create hypotheses and experiments.
Which of the following is true of the endocrine system but not the nervous system? Which of the following statement about the endocrine system is not correct?
Assume Margarine picks up 45mg of phthalated per kg. If you use0.5lbs of margarine that has already absorbed 45mg of phhalated tobake 3 dozen cookies. How much phathlated witll threw cookies contain assuming they are same size and mass.?
What is the one-gene, one-enzyme hypothesis? What was the experimental evidence that supported this hypothesis?
how can a G-protein open an ion channel either directly or through a protein kinase enzyme?
q1. use of synthetic fertilizers often leads to the contamination of groundwater with nitrates. nitrate pollution is
a scientist isolates two specific mRNAs. one codes for the enzyme fowlase, an enzyme that is involved in digestion in chickadees; the other codes for the quail enzyme quailase that is involved in cellular carb metabolism.
Explain why cutting an arterial vessel will cause a greater loss of blood over the same amount of time than cutting a venous vessel.
The dominant bonds holding together non-polar compounds that are immersed in aqueous solution are, and the forces that hold pure solutions of non-polar compounds are
In which way does a microRNAs function like a Northern blot?
please respond thoughtfully and in your own words to the following questions. be sure to back up statements of fact
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