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.
The pollution of boats can<span> hurt the animals it that water.</span>
Answer:
D
Explanation:
there are around as many bacteria cells as there are human cells in the human body.
The hydrogen bonding of nucleotides into a new DNA molecule is facilitated by enzymes. Hydrogen bonding is the electromagnetic attraction between polar molecules in which hydrogen is bound to a larger atom, such as oxygen or nitrogen. The nucleotides in a base pair are complementary which means their shape allows them to bond together with hydrogen bonds. The A-T pairs forms two hydrogen bonds while the C-G pair forms three. The enzymes called DNA polymerases join the nucleotides by way of phosphodiester bonds.
