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  1. Stealth Mosquitoes? - Biology Stack Exchange

    Aug 26, 2024 · Have mosquitoes become silent and invisible, or am I losing my senses of hearing and sight? This summer I have seen no mosquitoes and have only heard two of them, very quiet, as I sat …

  2. metabolism - Why are 6 turns of the Calvin cycle needed to make one ...

    Oct 6, 2021 · I‘ve read that 6 turns of the Calvin cycle are required to make 1 glucose molecule. But, 3CO 2 and 3RuBP are used in one cycle and 6 triose phosphate is produced. Only 5 triose …

  3. How is the size of a gene defined? - Biology Stack Exchange

    Jun 16, 2016 · Is there an agreed definition as to how many nucleic acid bases constitute a gene? If not, why not? I'm not sure I understand how the exact sizes of genes are defined.

  4. Mammal body density - Biology Stack Exchange

    Human body density is approximately 1 kg/l (same as fresh water) - which is not surprising (at first) given that we are 70% water, and is surprising (on a second thought), given that the other 30% ...

  5. Phosphorylation of glucose in glycolysis - Biology Stack Exchange

    Jul 26, 2025 · In the first step of glycolysis, the glucose ring is phosphorylated. Phosphorylation is the process of adding a phosphate group to a molecule derived from ATP. As a result, at this point in …

  6. dna - qPCR precipitation - Biology Stack Exchange

    Nov 8, 2023 · I have performed DNA precipitation using two methods on an amplified 194 bp PCR product: using a PEG method with just cold 80% ethanol PEG worked much better for me. Can the …

  7. Why are so few foods blue? - Biology Stack Exchange

    Feb 22, 2017 · Although blue foods exist, they're rare enough compared to other foods for food preparers to use blue plasters as a convention. The natural colour of a given food is due to pigments …

  8. Difference between Premature Atrial Contraction and Atrial Fibrillation

    Jul 17, 2019 · what is the difference between Premature Atrial Contraction and Atrial Fibrillation. I know that both have irregular heart beat but have normal QRS complex. Both have abnormal or absence P …

  9. Are eukaroytic promoters located in the 5' UTR region?

    Sep 15, 2015 · Most promoter elements are not a part of the mRNA sequence. They are upstream (towards 5') of the transcription start site. However, a certain class of promoters called downstream …

  10. Do spiders learn how to build webs? - Biology Stack Exchange

    Nov 4, 2021 · Spiders’ ability to weave webs is a classic example of an innate or instinctual behavior. They do not learn to make webs. The earliest English-language scientific publication that I can find to …