During meiosis, independent assortment and crossing over of DNA segments result in gametes with diverse sets of genes. Additionally, random fertilization of an egg by a sperm occurs, forming a zygote with unique genetic material from each parent.
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Answer:
cell membrane is a thin flexible layer around all living creatures
<span>Melanin helps protect the skin against effects of the sun such as skin cancers and premature aging. In African American skin, melanin provides a sun protection factor (SPF) equivalent to 13.4 compared to 3.4 in white skin and thus the former have lower incidences of skin disorders associated with exposure to the sun.</span>
