What are the functions of introns? What is the difference between chromatin and histone? What are the functions of phospholipids? Where are ribosomes manufactured? What is the function of messenger RNA? What are the functions of epithelium and connective tissue?
DNA is made up of molecules called nucleotides. Each nucleotide contains three components: a phosphate group, which is one phosphorus atom bonded to four oxygen atoms; a sugar molecule; and anitrogenbase. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytos...
What is the origin of a seed? A fruit? What are three components of a seed? What is seed dormancy? Why is it good? What are the differences between a seed and a fruit? How does a plant grow from a seed? What is the function of endosperm in seeds?
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What is the function of DNA? Genes encode proteins that perform all sorts of functions for humans (and other living beings). The human gene HBA1, for example, contains instructions for building the protein alpha globin, which is a component of hemoglobin, the oxygen-carrying protein in redblo...
Neurodevelopment is a highly complex process, sensitive to a multitude of signaling pathways linked to molecular processes involved in neuronal development and function, metabolism, and immune functions. Key pathways include cell-cycle regulation (PI3K/Akt/mTOR, p53/PTEN), JAK-STAT, Notch, SLIT/Robo...
(HDACs), on the other hand, play a counteracting role to HATs. They remove acetyl groups from histones, resulting in a more condensed chromatin structure that restricts access to DNA. This repression of gene expression is crucial for maintaining proper cellular function, regulating cell ...
However, in certain cases, the activity of these pathways can lead to aberrant DNA repair, genomic instability and tumorigenesis. One such case is DNA repair at the natural ends of linear chromosomes, known as telomeres, which can lead to chromosome-end fusions. Here, we review data obtained ...
Headaches represent a prevalent and burdensome health condition, affecting individuals of all ages worldwide. While dietary factors have been implicated in
What is the function of slime layer? The slime layer is an easily removed, diffuse, unorganized layer of extracellular material which surrounds the bacterial cell. It is usually composed of polysaccharides and it may serveto trap nutrients, to aid in cell motility, to bind cells together or to...