A fly have two X chromosomes and three sets of autosomes, it is a mosaic.

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#Id: 5872

#Unit 10. Ecological Principles

The Greenhouse Effect Causes the Earth’s Temperature to Rise

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#Id: 10548

#Unit 4. Cell Communication and Cell Signaling

Intrinsic apoptosis pathway is mediated by an activated initiator caspase (caspase-9)

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#Unit 4. Cell Communication and Cell Signaling

Integrins can mediate outside-in and inside-out signaling

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#Unit 8. Inheritance Biology

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#Unit 3. Fundamental Processes

The degeneracy of the code is not uniform. Whereas methionine and tryptophan have single codons, for example, three amino acids (Arg, Leu, Ser) have six codons, five amino acids have four, isoleucine has three, and nine amino acids have two.