EVOLUTION
EVIDENCE FOR EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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because cancer wasn’t believed to have originated in the areas where the Neanderthals thrived.
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because cancer only affects younger Neanderthals.
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because Neanderthals are not a direct ancestor of humans.
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because cancer was considered to come from exposure to polluted environments.
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Detailed explanation-1: -A tumor found in a Neanderthal specimen more than 120, 000 years old may give scientists insight into the origins of cancer. The rib tumor, which was an abnormal bone growth known as a fibrous dysplasia, is consistent with a kind of cancer that is found in modern-day people.
Detailed explanation-2: -A Neanderthal living 120, 000 years ago had a cancer that is common today, according to a fossil study. A fossilised Neanderthal rib found in a shallow cave at Krapina, Croatia, shows signs of a bone tumour. The discovery is the oldest evidence yet of a tumour in the human fossil record, say US scientists.
Detailed explanation-3: -The Neanderthal genes that remain in some human DNA today tend to affect the functioning of the immune system and hair and skin traits – such as hair color, tendency toward baldness and the skin’s capacity to tan, Capra said.
Detailed explanation-4: -East Asians seem to have the most Neanderthal DNA in their genomes, followed by those of European ancestry. Africans, long thought to have no Neanderthal DNA, were recently found to have genes from the hominins comprising around 0.3 percent of their genome.