During adolescence, Spermatogonia, mature into primary spermatocytes 

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#Id: 2630

#Unit 13. Methods in Biology

End-labelling of a gene probe at the 3′ end using terminal transferase. Note that the addition of a labeled dNTP at the 3′ end alters the sequence of the gene probe.

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#Id: 2208

#Unit 11. Evolution and Behavior

Chevalier de Lamarck- Inheritance of acquired characteristics

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#Id: 1049

#Unit 5. Developmental Biology

The apical ectodermal ridge is a thickening of the ectoderm at the apex of the developing limb bud.

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#Id: 5673

#Unit 7. System Physiology – Animal

The resting membrane potential of the hair cells is about

–60 mV. 

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#Id: 3709

#Unit 2. Cellular Organization

Depending on the diploid combination of thalassemic alleles, an affected individual may have any number of a chains from zero to three.