Homologous chromosomes pair up and exchange segments of DNA.
Option A
<h3><u>Explanation:</u></h3>
Crossing over is an event of Prophase 1 of meiosis 1. It occurs in the zygotene phase of prophase 1. Here the homologous chromosome pairs get very close together and gets packed within protein coat. The enzymes randomly cut the DNA segments from both chromosomes at same loci and exchange them with each other. This results in the exchange of genes between the two chromosomes. This is how the variation comes to place between offsprings of the same individuals. The crossing over results to form X shaped intersections between homologous pair of chromosomes which is called as chaismata. This phase occurs in pachytene phase and is visible in diplotene phase when the protein coat dissolves.
Photosynthesis is the process of converting light energy<span> to chemical </span>energy<span> and storing it in the bonds of sugar (the glucose). C. In the </span>respiration equation<span>, </span>does energy act as a reactant or a product<span>? </span>Explain<span>. ... Cellular </span>respiration<span> uses glucose and oxygen, and it makes water and carbon dioxide.</span>
Insects live under rocks. Hope this helps!!
Answer:
we would blood tempter will rises
Explanation:
Answer:
it might be photosynthesis?
