Answer:
The scheme of the tautomers of cytosine, guanine and thymine are found in the attached file
Explanation:
The primary imine-amine tautomerism occurs in heterocyclic compounds where hydrogen may be forming the amino group (primary amine form) or migrate to adjacent nitrogen (imine form), may occur in some nitrogenous bases such as cytosine. Thymine shows double lactam-lactymal tautomy (where hydrogen migrates from the nitrogen atom to the oxygen atom of the heterocycle oxo group (lactam form) and vice versa (lactose form)), and guanine and cytosine can both.
Answer:
If the surface barriers of innate immunity, such as the skin or mucous membranes are breached, the second line of defense in innate immunity is (are) the: lymphocytes
Explanation:
The lymphocytes direct and regulate immune responses. Specifically, B lymphocytes produce antibodies to fight against bacteria, viruses and invading toxins. T lymphocytes destroy the body's own cells that have been infected by viruses or that are cancerous.
Answer: unbinding the active repressor from the operator
Explanation:
Both plant cells and animal cells obtain energy through food