Two different types of microtubule structures can exist, 

one in the T form bound to GTP 

one in the D form bound to GD

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#Unit 11. Evolution and Behavior

People who are Δ32 homozygous for the deletion are highly resistant to HIV, while heterozygotes are partly resistant.

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#Unit 11. Evolution and Behavior

These pieces— the exons —are separated by stretches of noncoding DNA— the introns

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#Unit 11. Evolution and Behavior

Chromosome Evolution

Fissions and fusion is the most common way for the number of chromosomes to change.

Humans have 23 pairs of chromosomes, but all of the other great apes have 24 pairs. At some point since our lineage split from that of chimpanzees, two chromosomes fused

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#Unit 11. Evolution and Behavior

A phenotypic distribution is determined by genetic and environmental factors.

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#Unit 11. Evolution and Behavior

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#Id: 2252

#Unit 11. Evolution and Behavior

Adaptive landscape- A surface in multidimensional space that represents the mean fitness of a population.