The electrons revolve in orbits around the nucleus.

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#Id: 2248

#Unit 11. Evolution and Behavior

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

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#Id: 3706

#Unit 2. Cellular Organization

When a genome contains a cluster of genes with related sequences, mispairing between nonallelic loci can cause unequal crossing over. This produces a deletion in one recombinant chromosome and a corresponding duplication in the other.

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#Id: 5551

#Unit 7. System Physiology – Animal

The principal cells reabsorb sodium and water from the lumen and secrete potassium ions into the lumen

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#Id: 506

#Unit 2. Cellular Organization

The rate of loss of single-stranded (ss) DNA during renaturation is a second-order rate process

 

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#Id: 3834

#Unit 5. Developmental Biology

The stalk is supported by a basal disc & the spore mass is is supported by the upper and lower cup.