The term "unzipping" in the DNA replication refers to the breaking of the hydrogen bonds.
<span>In the process of DNA replication, DNA helicases
disentangle DNA at positions known as origins where synthesis will be
initiated. DNA helicases continue to uncoil the DNA creating a structure called replication fork
as they unzipped apart. The process of breaking the hydrogen bonds between the
nucleotide base pairs in double-stranded DNA needs energy. Helicases require
energy stored in an ATP molecule to break the bonds. </span>
The sodium amytal test involves the injection of a small amount of sodium amytal into the carotid artery on one side of the neck. This injection anesthetizes the hemisphere on that side for a few minutes.
A method that involves injecting a small amount of a barbiturate into the carotid artery on one side of the head to assess hemispheric functions, usually memory and language. The cerebral hemisphere that was injected selectively becomes impaired for 10 to 15 minutes during this operation.
Various cognitive tests are given while each hemisphere is seperately anaesthetized; deficiencies on these tasks imply that these functions are represented in the anaesthetized hemisphere. Prior to a temporal lobectomy, the Wada test may be utilised in cases with severe and uncontrollable epilepsy. Also known as the Wada technique, intracarotid sodium Amytal test (ISA), Wada dominance test, and intracarotid amobarbital procedure.
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Hans eysenck makes a connection between genetic factors and conditioning in explaining personality development.
<h3>Who is Hans Eysenck?</h3>
Hans Jürgen Eysenck was a German-born British psychologist who proposed a theory of personality based on biological factors.
The summary of Hans Eysenck theory of personality is as follows:
- personality is influenced by one's genetic predisposition
- personality is influenced by conditioned behaviors
- personality is influenced by biological factors
Therefore, Hans eysenck makes a connection between genetic factors and conditioning in explaining personality development.
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Answer:
Before they replicate the two DNA strands need to separate from each other.
Explanation:
Answer:
In gram-negative bacteria, the thin layer of peptidoglycan is surrounded by an outer membrane made of phospholipids, lipopolysaccharides, and proteins. This statement accurately describes specific bacterial cell walls.
Explanation:
The Gram- negative bacteria constitute of an outer membrane which is richly made up of lipopolysaccharides, phopholipids and proteins. The lipopolysaccharides function mainly as a virulence factor and are involved in causing variety of diseases in animals.
Gram- negative bacteria can be seperated from gram- positive bacteria mainly because of the thickness of peptidoglycan and by the presence of the outer membrane of Gram- negative bacteria. The outer membrane is absent in Gram- positive bacteria.
