Transcription is the first process that occurs in the expression of a gene. It involves the synthesis of a mRNA molecule from a DNA template. The DNA molecule, which is located in the nucleus of an eukaryotic cell, is bound to by an enzyme called RNA polymerase in order to synthesize an mRNA molecule/strand.

RNA polymerase synthesizes a mRNA molecule using complementary base pairing rule i.e. Uracil base (U) is synthesized when Adenine (A) is read, Adenine when Thymine (T) is read, Guanine (G) when cytosine (C) is read, Cytosine when guanine is read. These nucleotide bases are then joined together via chemical bonding.

In a nutshell, RNA polymerase catalyzes the formation of a bond between the backbone sugar of one nucleotide base to the backbone phosphate of another nucleotide base in the metabolic process of TRANSCRIPTION.

3 0

2 years ago

Antibiotics exploit differences in structure between prokaryotes and eukaryotes in order to selectively attack pathogenic bacter

eimsori [14]

<h2>Peptidoglycan Cell Wall </h2>

Explanation:

A cell wall containing peptidoglycan and distinctive ribosomes
Bacterial cell dividers are made of peptidoglycan (additionally called murein), which is produced using polysaccharide chains cross-connected by irregular peptides containing D-amino acids
Gram-positive microscopic organisms have a thick cell divider containing numerous layers of peptidoglycan and teichoic acids
Ribosomes are small particles which is related proteins that capacity to synthesize proteins and comprising of RNA
Proteins are needed for many cellular capacities, for example, directing chemical procedures and repairing damage
Ribosomes can be discovered drifting inside the appended to the endoplasmic reticulum or cytoplasm

4 0

3 years ago

pav-90 [236]

Answer

it is B oxygen

6 0

2 years ago

What is the layer of fat cells that helps electrical impulses travel faster along the axon of a neuron?

Degger [83]

Myelin sheath. It is a layer of lipids produced by Schwaan cells around the axon of neurons. The sheath increased the rate of electric impulse transmission through the axon, several folds. This process is called saltatory conduction where impulse ostensibly hops from a node to another.

8 0

3 years ago