Strong acids contain many H+ ions. Strong bases contain many OH- ions. These ions disrupt certain bonds within enzymes called hydrogen bonds, ionic bonds, hydrophobic interactions or hydrophilic interactions. Disrupting these bonds causes the active site of the enzyme to change shape, altering the enzymes tertiary structure. This means that substrates can no longer fit in to the enzymes active site because they are no longer complementary in shape, which stops the enzyme performing its funtion
in contrast, electromagnetic waves require no medium, but can still travel through one. Some of the most common examples of mechanical waves are water waves, sound waves, and seismic waves.
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disease, toxins, and pathogens
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im pretty sure that that is the kinds of stimuli
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three nucleotides—called a triplet or codon—codes for one particular amino acid in the protein. The nucleotide sequence in the DNA is first transcribed into a molecule of messenger RNA (ribonucleic acid).
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Explanation:
Type of gene(s) found in cancer cells -------------- oncogene
type of gene(s) found in normal cells and cancer cells ----- oncogene, proto-oncogene
gene(s) that could code for a normal growth factor ---------------- proto-oncogene
gene(s) whose absence can cause cancer --------- tumor suppressor gene (anti-oncogene)
type of gene(s) found in normal cells ----------- oncogene and proto-oncogene
gene(s) whose presence can cause cancer ------------- oncogene
type of gene(s) found only in cancer cells ------- oncogene
Oncogene are the switch off of proto-oncogene and are responsible for abnormal cell growth. Oncogene are found in all normal cells. They are mutated proto-oncogene.