Zero degrees latitude is the line designating the Equator and divides the Earth into two equal hemispheres (north and south).
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Considering Tall is capital T
Genotypic: 50% hetero dom and 50% homo recess
Phenotypic: 50% tall and 50% short
Answer;
He conducted an experiment with breeding pigeons.
Explanation;
The pigeons provided the perfect animal to test his theory of selection for quite a number of reasons including its trait diversity from wing structures to color patterns to size to flight patterns. From these experiments he concluded that by natural selection of randomly occurring traits that make species better suited for survival and reproduction, evolve in the astounding diversity of organisms on Earth today.
MRNA carries a transcript of the needed amino acids to tRNA and then to the rRNA ribosomal component.