Answer: after meiosis l, the cells have 23 chromosomes
Answer:
there is usually no difference. The offspring is genetically identical to the parent.
Rubies are the most valuable members of the corundum family. Large gem-quality rubies can be more valuable than comparably sized diamonds and are certainly rarer. There is a relative abundance of smaller, 1-3 carat blue sapphires compared to the scarcity of even small gem-quality rubies.
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Uranus has an icy layer over its solid rock core, and covered with a gaseous atmosphere. Neptune has a water-ammonia ocean for a mantle overlying its rocky core. The metallic hydrogen layers in Jupiter and Saturn conduct electricity.