Under physiological conditions, mRNA, with the exception of a few mitochondrial transcripts, is produced in the nucleus, transported to the cytosol, and translated by ribosomes into a protein. The mRNA is then quickly metabolized. mRNA in the cytoplasm has a short half-life due to the ...
The participation of the nitrogen lone electron pair in the aromatic ring means that indole is not a base, and it does not behave like a simple amine. As an intercellular signal molecule in both gram-positive and gram-negative bacteria, indole regulates various aspects of bacterial physiology, ...
What is a single unit of quanta called?Quanta:Quanta are units that are used in physics. The word 'quanta' comes from the Latin word quantus, which means 'how much,' which is also the origin of the word 'quantity.'Answer and Explanation: ...
But this doesn’t mean we are exact clones of our parents.Gametes(the chromosome-containing cells we get from our mom, an egg/ovum and dad, a sperm) combine in ways that we can’t completely predict. Gametes are haploid, which means they each have only one copy of the 23 chromosomes ...
They say that most DNA is located in the cell’s nucleus, but smaller amounts of DNA can be found in the mitochondria. They said that DNA bases pair up with each other. “A” or adenine goes with “T” or Thymine and “G” or guanine goes with “C” or cytosine. These pairs ...
Organisms can be broadly categorized as eukaryotic or prokaryotic largely based on whether a nucleus containing DNA is present. In eukaryotic organisms, DNA andhistones(proteins) coil together, forming chromosomes. Each chromosome in a diploid cell is part of a homologous pair. Reproductive germ cells...
According to Chomsky, language is not a form of behaviour, it is an intricate system and a large part of language acquisition is the learning of this system. 【答案】rule-based 【解析】乔姆斯基认为,语言并不是一种行为,而是一套精密的以规则为基础的系统,语言习得主要是学习这一系统。 The theory...
It's not pleasant to think about it, but foodborne viral illnesses are transmitted via the fecal-oral route. This means that a person gets the virus by ingesting virus particles that were shed through the feces of an infected person. Someone with this type of virus who doesn't wash their...
Protons are subatomic particles that, along with neutrons, comprise the nucleus or central portion of an atom. The rest of the atom consists of electrons that orbit the nucleus, much as Earth orbits the sun. Protons can also exist outside an atom, in th
The smallest unit of an element, having all the characteristics of that element and consisting of a very small and dense central nucleus containing protons and neutrons, surrounded by one or more shells of orbiting electrons. Atoms remain undivided in chemical reactions except for the donation, acc...