Keeping constant the number of chromosomes of the species and perform a summary of recombination, through crossing-over
( Swapping – increases the <span>genetic variability )</span>
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<span>As humans change the way we live on the planet, the way that nitrogen moves around the Earth also changes. Nitrogen atoms may seem small enough to be easily overlooked. We look right through the ones in the air, do we not? Yet recent changes in the nitrogen cycle are causing a very noticeable effect on natural environments and human health. Lakes are clogged with aquatic weeds. Dead zones have formed in areas of the oceans where animals can not survive. Air pollutants that contain nitrogen are decreasing air quality and greenhouse gases that contain nitrogen are becoming more common.</span>
<span>Alzheimer's would also be what a diabetes medicine can help cure. Since the diabetes is a being able to maintain glucose it can also send signals to the brain which in term can help with dementia.</span>
Answer:Un estudio de la Universidad de Barelona demuestra, por primera vez, cómo pueden separarse los genes a lo largo de los linajes evolutivos mediante el mecanismo de la retrotransposición, que es la síntesis de ADN a partir de ARN a través de la transcriptasa inversa.
Explanation: