
definitions - What is an organism? - Biology Stack Exchange
The definition of an organism Wikipedia gives is An organism is any contiguous living system. I understand that these are not organisms according to this definition: A bird and a tree it's perchi...
molecular biology - Why are camelid-derived nanobodies called VHH ...
Dec 21, 2023 · First, the definition of VHH (and VH) from the article by S Muyldermans — “Nanobodies: Natural Single-Domain Antibodies” in Annu. Rev. Biochem. 2013. 82:775–97. VHH: antigen-binding …
Exact definition of homoplasy? - Biology Stack Exchange
May 18, 2020 · According to Wikipedia (obviously not the final authority on scientific questions, but often reliable), homoplasy occurs when a trait has been gained or lost independently in separate lineages …
Definition of semiquantitative - Biology Stack Exchange
Sep 21, 2021 · I'd like to understand differences between how biologists and statisticians deal with uncertainty. As a concrete example, I'd like to understand if "semi-quantitative" can be …
evolution - Is a "Fact" any theory for which there is overwhelming ...
Evolution is often described as a fact, and a theory. Evolution is a heavily overloaded term, with one definition being the fact that, "changes in the frequency of alleles in populations of
Loss of function in inflammation - Biology Stack Exchange
The Wikipedia-article about Inflammation says The five classical signs of inflammation are heat, pain, redness, swelling, and loss of function (Latin calor, dolor, rubor, tumor, and functio laesa).
What's the definition of 'natural prey' and 'natural predator'?
Apr 3, 2022 · Natural world be used in situations like these for 1 of 2 possible reasons (and potentially both simultaneously): to indicate ecologies that exist due to the organisms evolving together in that …
What are artifacts in microbiology? - Biology Stack Exchange
Oct 9, 2013 · Take, for example, this definition from biology-online.com: Something artificial, a distortion that does not reflect normal anatomy or pathology, not usually found in the body. For example: in …
What is the difference between fixation and loss of alleles in a ...
Yes, 'lost' seems to be referring to fixation of the a allele in this program, where the statements 'fixed' and 'lost' are specifically referring to the A allele. Conceptually, 'fixed' and 'lost' are describing the …
What is the difference between silent and synonymous mutations?
Apr 23, 2018 · Because these mutations, by definition, do not change the amino acid sequence, they are nominally silent. However, due to codon bias, etc.,, a synonymous mutation may not always be …