The outer core of Mars cooled too quickly and the magnetic field didn't have time to fully form so the solar winds destroyed the magnetic field and the atmosphere
Evidence would the fossils they left in the grounds they found.
<span>Almost all female progeny show the cleft chin trait so the percent would be 100%. This trait is normal called as dimples on the cheek. When you have cleft chin, it is quite possible that they have two dominant alleles or sometimes one dominant and one recessive allele.</span>
A GWAS can be performed by actually genotyping as few as 300000 to 1million