-Crossing over occurs between prophase 1 and metaphase 1 and is the process where homologous chromosomes pair up with each other and exchange different segments of their genetic material to form recombinant chromosomes. It can also happen during mitotic division, which may result in loss of heterozygosity.
<span /><span /><span>Hello Madisonliehg8598,
The main formats are:</span><span>
<span>LTO, DLT-S, DAT, AIT, and <span>QIC.</span></span></span>
Answer:
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A person can only show a recessive trait if both of their parents carried at least one copy of each of the recessive allele. The parents do not need to show the trait, as one copy is not enough to reveal it, but they must both carry it.
Hope this helped!
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