mRNAs are single-stranded nucleic acid molecules present in every cell after transcription from a DNA template. Under physiological conditions, mRNA, with the exception of a few mitochondrial transcripts, is pr
Which term best describes the following organism: a unicellular (single-celled) eukaryote that has a single large mitochondrion and causes Chagas disease or sleeping sickness. Archaea are single-celled microorganisms. Do they have ribosomes?
Describe the method by which hydrophobic signal molecules generate a cell response. What are lipids? What structural difference accounts for the fact that phospholipids form lipid bilayers rather than the micelles that soaps form? The model describes the cell membrane as an assortment of integral prot...
19 LLPS describes a physical process by which a homogeneous solution spontaneously separates into two distinct immiscible phases: a dense phase, and a dilute phase. The dense phase is often referred to as a condensate. In many cases, the exact physical state of the condensate is poorly ...
This approach describes the local growth properties of a physical region in terms of growth rate, anisotropy, direction, and rotation rate, that can all be encapsulated within a matrix termed the ‘growth tensor’ (Hejnowicz & Romberger, 1984). It is particularly suitable for tracking the ...
"Amoeba" is a term that describes a simple eukaryotic organism that moves in a characteristic crawling fashion. However, a comparison of thegeneticcontent of the various amoebas shows that these organisms are not necessarily closely related to each other. ...
RNA is a biological macromolecule that serves a number of different functions. Messenger RNA (mRNA), transcribed from DNA, serves as a template for synthesis of proteins. Protein synthesis is carried out by ribosomes, which consist of ribosomal RNA (rRNA) and proteins. Amino acids for protein ...
How do the nucleus and ribosomes work together? What is the difference between bacterial reproduction and viral replication? In a prokaryotic cell, DNA is found where? Which best describes the first organisms on Earth: a. simple prokaryotes b. multicellular prokaryotes c. simple eukaryotes d. arc...
What kinds of molecules cannot pass easily through a cell membrane? Which statement correctly describes bound ribosomes? A. Bound ribosomes are enclosed in the membrane B. Bound ribosomes and free ribosomes are structurally different. C. Bound ribosomes generally synthesize membrane protei...
In cancer, the nucleolar size increases dramatically, which is due, at least in part, to the burden of ribosome production. Indeed, large nucleoli (and/or an increase in the number of nucleoli) indicate the presence of tumor cells, but this does not prove that the cells are aggressive and...