<span>Sicle cell disease is disadvantageous in any continent. However in Central Africa ,where there is a lack of care for health and modernizaition, it will be too hard for a person to heal someone with sickle cell disease. The country is struggling with their sanity having a sickle cell disease will be difficult for them to find a donor who is healthy enough to donate blood.</span>
Frederick Miescher first identified DNA.
DNA provides the instructions for protein production.
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Hello there.
<span>The crossing over is a process where the chromatids pair and exchange sections of DNA, which lead to exchange genes (this result is call genetic recombination). So, the crossing over between nonsister chromatids during meiosis is significant in heredity because it leads to an increase of genetic variation (answer d.)</span>
1) the same as.
Is your answer
