RR genotype will create a round off spring.
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<span>The Earth's precession estimated to last for 26 000 years.</span>
The light of the moon is sunlight hitting its surface and reflecting it onto us. The phases of the moon are caused by its position in relation to the sun and earth. The light is reflected at different angles, so we see 'phases' of the moon.
Another name for the genetic disorder down syndrome is Trisomy 21.