Answer:
If both parents have the recessive Gene and that Gene went into the child's cells
Explanation:
Answer:
The correct answer will be option B (Interferons).
Explanation:
The innate immune response to viral infection begins with the recognition of pathogen which starts viral host response in organism.
After detection of viral infection cell produces type I interferon's, the protein molecule which interfere with the proliferation of viral cells.
Interferon's provide resistance to viral infection by :
1. Binding to IFN-α/β receptors which activate JAK/STAT pathway.
2. Production of enzymes which leads to the degradation of viral RNA.
3. Induction of ds-RNA-dependent kinase which inactivates the synthesis of proteins.
4. Binding to Natural killer cells which induces lytic activity, killing viral infected cells.
Thus, option B-interferon is the correct answer.
Explanation:
Lactase, also called lactase-phlorizin hydrolase, enzyme found in the small intestine of mammals that catalyzes the breakdown of lactose (milk sugar) into the simple sugars glucose and galactose. In humans, lactase is particularly abundant during infancy.
Answer: Choice I
Explanation:
Choice I only happens in <em>meiosis</em>.