Carbon emissions are responsible for the global warming crisis. More specifically they are responsible for bad air quality. Greenhouse gases. Sometimes also cancers
<span>
a. the Human Genome Project. HGP or Human Genome Project's goal is to sequence all chemical base pairs of the human DNA. </span>This scientific research project has revealed that there could be an approximate of 20,500 human genes.
The answer is <span>Topoisomerase.
Topoisomerase is an enzyme responsible for twisting of DNA helix. After DNA strand is untwisted by helicase enzyme, DNA must be twisted again so the normal function of DNA can be sustained. If left untwisted, the replication fork will continue to grow, the normal function of DNA will stop.</span>
The abnormal or unusual side pockets in a hollow organ, such as the intestine is called Diverticula. A gut diverticulum is an outpouching of the wall of the gut to form a sac. It may occur at any level from aesophagus to colon. A true diverticulum includes all three layers of the gut; the lining mucosa, the muscularis, and the outer serosa; while the flase diverticula are missing the muscularis thus, they are thin walled.
Answer:
If the covalent is polar its means that pair of electrons are unequally shared between both atoms.
Through electronegativity difference.
Explanation:
Covalent bond:
It is the bond which is formed by the sharing of electrons between the atoms.
It is weaker than the ionic bond. The both bonded atoms do not completely transfer the electrons but can only shares.
For example:
The bond between the both chlorine atoms Cl₂ is coavlent. Cl:Cl
The bond between the H₂ atoms is covalent. H:H
The covalent bond can be polar or non polar. When it is formed between the atoms of two different elements then electronegativity difference is created. The atom atoms with high electronegativity values attract more strongly the shared pair of electron towards it self and become partial negative while the other became partial positive. Thus bond become polar.
But this is only in case when the electronegativity difference between both atoms is 0.4 are greater. If the difference is less than 0.4 than bond is non polar.
For example:
HCl, H₂O
The polar covalent bond is present in HCl and water because of greater electronegativity difference between hydrogen and chlorine , oxygen and hydrogen.
