Answer:
Cell growth but also involved in cancer development
Explanation:
Tyrosine-kinase receptors are the main receptors for the growth hormones, but also cytokines and hormones. These receptors are regulators of normal cellular processes, but if a mutation occurs it can lead to activation of a series of signalling cascades that change the gene expression. Consequently, this has a critical role in the development and progression of many types of cancer.
Answer:
Phenotypic plasticity
Explanation:
Humans have evolved over thousands of years to adapt to various environmental changes. For example, when we are in an environment that requires certain level of adaptation our off spring often formalizes epigenetic traits that lows them to overcome small changes in the environment. Over time certain genes that are turned on may remain on and eventually the ones that are off remains off. This give rise to some genes that "don't work" after millions of years of such evolution we end up with a complex genome with more DNA than "working genes".
I believe that the best answer to this question is d. amino acids.
answer is antibodies.
B cells are a type of lymphocytes and it is responsible for the immune system. B cells help to protect body by producing specific antibodies to fight against each antigen which are strangers to the body specially for viral infections.
