A posterior-to-anterior gradient of Caudal protein.

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#Id: 6583

#Unit 7. System Physiology – Animal

During adolescence, Spermatogonia, mature into primary spermatocytes 

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#Id: 6735

#Unit 8. Inheritance Biology

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#Id: 6416

#Unit 2. Cellular Organization

Transcription is initiated at the beginning of the 162 nucleotide mRNA leader encoded by a DNA region called trpL

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#Id: 7609

#Unit 5. Developmental Biology

Slow Block to polyspermy

When the cortical granules fuse with the egg cell membrane, they release protein-digesting enzymes that modify the zona pellucida proteins such that they can no longer bind sperm

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#Id: 4866

#Unit 13. Methods in Biology

level of significance defines whether the null hypothesis is assumed to be accepted or rejected. It is expected to identify if the result is statistically significant for the null hypothesis to be false or rejected.