The answer is <span>A. The Y chromosome doesn't experience crossing-over.
</span>The crossover of chromosomes is the exchange of genetic material between homologous chromosomes. In males, X and Y chromosomes pairs but they cannot exchange genetic material except at the ends of the chromosomes called pseudoautosomal regions. So, greatly, the Y chromosome <span> doesn't experience crossing-over.
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Through the process of elimination:
B. A mother gives X chromosome and a father gives Y chromosome to the son.
C. The mitochondria cannot be passed in the nucleus of a cell since it is another organelle.
D. It is thought that mitochondria is passed only from mother to her offspring, so they cannot vary greatly.
Cellular respiration is an exothermic process. This is because the breaking of carbon-hydrogen covalent bonds within sugars releases energy
Kidney regulates the volume of blood in the body to maintain blood pressure.
Condensation occurs when the air molecules turn into liquid. for example the "wet" on a soda can. Or the 'wet' on your mirror once you shower
