The pathway will be;
The body cells becomes infected with a virus= then new viral proteins appear = class I MHC molecule-antigen complex displayed on cell surface.
Cytotoxic T cell is a T lymphocyte that kills cancer cells, cells that are infected or cells that are damaged in other ways. They are activated on the surface of antigen-presenting cells, which mature during the innate immune responses triggered by an infection.
Answer:
The skin has 4 main layers, Epedermis, Derma, Hypodermis, and the Subcutaneous layer. Each layer is composed of certain material and tissue. On the most outer layer, there is hair, nerves, and glands (of sweat). Down further are veins, and arteries. The adipose tissue makes up the hypodermis layer.
Answer:
The missing of Taq DNA polymerase will affect the DNA synthesis or polymerization step.
Explanation:
Taq DNA polymerase is also known as termostable DNA polymerase because it is able to exert its catalytic activity at high temperature.
Taq DNA polymerase is used for the 3rd step of polymerase chain reaction which deals with the joining of nucleotides by phosphodiester bond formation.
The missing or lack of Taq DNA polymerase will affect the DNA synthesis step of PCR.
Answer:
Herbaceous or Woody stems.
Explanation:
Citrus belongs to Rutaceae family it is a genus of shrubs and flowering trees (feature of angiosperm plants) Plants which belongs to this genus produce citrus fruits like grapefruits, lemons, oranges, limes etc.
These plants are large shrubs, and 5-15 m tall trees with woody stems, alternatively arranged leaves with an entire margin and spiny shoots. Flowers are small in size each are 2-4 cm in diameter with numerous stamens and five petals, rarely four petals are present. Their leaves and flowers are very strong in scent.
