The p53 gene is a recessive tumor suppressor gene which functions as a key regulator for the cell cycle. In the event when only one p53 allele is mutated then the function of the p53 gene will persist and apoptosis (programmed cell death) will proceed if there are significant gene mutations in the cell. If two p53 alleles are mutated then the cell will not receive the signal to apoptose even with significant mutations and cancer will develop.
Answer:
All atoms can be identified by the number of protons and neutrons they contain. The atomic number (Z) is the number of protons in the nucleus of each atom of an element. In, a neutral atom the number of protons is equal to the number of electrons, so the atomic number also indicates the number of electrons present in the atom. The chemical identity of an atom can be determined solely from its atomic number. For example, the atomic number of nitrogen is 7. This means that each neutral nitrogen atom has 7 protons and 7 electrons. Or, viewed another way, every atom in the universe that contains 7 protons is correctly named “nitrogen.”
Explanation:
The type of thermal energy which flows from one substance to another when the temperature of the two substances is different is known as heat. Hence, the blank can be filled with 'heat'.
Cellular respiration is the metabolic reaction inside the cell to convert chemical energy into ATP. Biomass is the total mass of organisms at a trophic level.
<h3>What is exothermic reaction?</h3>
The type of reaction in which releases energy after its completion.
- Cellular respiration releases energy because it is an exothermic process in which energy is released as a by-product of the reaction.
- Organisms are larger in size at higher trophic levels, but their smaller numbers result in less biomass.
Thus, being exothermic in nature, cellular respiration releases energy and because of less numbers, there is less biomass at high trophic levels.
To learn more about cellular respiration, visit:
brainly.com/question/13721588
