Answer:
The genetic element is the insulator.
Explanation:
The insulator is a basic component of the eukaryotic genomes. In recent studies, insulators have been found in many eukaryotic cells ranging from yeast to human. These genetic elements can clog the enhancer–promoter communication and can also prevent the movement of repressive chromatin. They also can be used to restrict the actions of silencers and enhancers in the system. Insulators can also efficiently protect the gene expression from the negative and positive chromatin effects. Another important function of the insulator is to serve as a regulatory element and prevent genes from unnecessary regulatory interactions.
2. chemical, thermal, and electromagnetic
Answer is: 3) H2O and HCl.
Polar molecules are water (H₂O) and hydrochloric acid (HCl).
Nonpolar molecules are carbon(IV) oxide (CO₂) and methane (CH₄).
Carbon(IV) oxide is nonpolar because CO₂ is linear molecule and the oxygen atoms are symmetrical (bond angles 180°).
Water is polar because of the bent shape of the molecule.
Hydrochloric acid has polar covalent chemical bond where hydrogen has oxidation umber +1 and chlorine oxidation number -1.
In molecule of methane (CH₄) all the atoms around the central element (carbon) are equivalent (four hydrogens) and it has a net dipole moment of 0 (vectors of dipole moments cancel each other, dipole moment is zero).
Answer:
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Explanation: