Fetus can survive an extra copy of a chromosome, but being hemizygous is <span>usually fatal</span>
Traits are inherited trough the parents genes that are passed to the offspring trough both parents reproductive cells, that contain genes in their nucleus.
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Answer:
those best suited to demands of environment survive
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Its called the convolution
also known as the Gyrification of the brain, it increase the brain surface area , allowing more neuron capacitiy to process information
its located in cerebral cortex and become a place where our brains store our memories.
