<span>Meiosis reduces chromosome number so that sex cells (eggs and sperm) have a half set of chromosomes–one homolog of each pair. This is the haploid number. CONGRATULATIONS! YOU'RE SO SMART!</span>
<span>The answer is they can be passed on to offspring.</span>
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<span>In his theory, Lamarck proposed how species adapted to the changed
environment by passing down acquired physical traits to the next
generation. But, after Charles Darwin published his theory of evolution,
Lamarck's theory was rejected. Now, it is known that acquired physical traits
could not be inherited and epigenetics is a good proof for that.</span>
Females are A. XX. Males are XY :)