Two sister chromatids are held together by the centromere
<h3>The Chromosome</h3>
The chromosome consists of 2 sister chromatids that are linked together by a structure known as the centromere.
Each of the sister chromatids carries an allele of the same gene.
The link between the two sister chromatids is broken at the anaphase stage of the cell division when spindle fibers pull them apart towards opposite poles within the cell.
More on the chromosome can be found here: brainly.com/question/296477
<h3>Oxidative Phosphorylation</h3>
Explanation:
The process by which ATP is generated by utilizing the large amount of energy released during the transfer of electrons from NADH or FADH₂ to the O₂ through a series of electron carrier present in the mitochondrial membrane is called oxidative phosphorylation.
The process of electron transfer is accompanied by the pumping of protons across inner membrane of mitochondria, from the mitochondrial matrix to intermembrane space establishing electrochemical proton gradient.
The ATP synthase complex present in the mitochondrial membrane allows the protons to move down the proton gradient as a result enough energy is released to add a phosphate group to ADP and form ATP inside the mitochondrial matrix.
