Recombination between the D and a JH gene segment occur during pre pro-B cell to the early pro-B-cell stage.

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#Id: 8942

#Unit 2. Cellular Organization

In S. cerevisiae, during interphase and early mitosis, Cdc14 is sequestered and inactivated in the nucleolus. 

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#Unit 5. Developmental Biology

Three protein-coding genes are found in bithorax complex: 

Ultrabithorax (Ubx)

Abdominal A (abdA) 

Abdominal B (AbdB) 

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#Unit 2. Cellular Organization

Active genes are often found at the borders of chromosome territories, and active genes from several chromosomes may cluster in inter-chromosomal territories that are enriched in transcription machinery.

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#Id: 7113

#Unit 6. System Physiology – Plant

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#Id: 2596

#Unit 13. Methods in Biology

Oligonucleotide-directed mutagenesis.

This technique requires a knowledge of nucleotide sequence, since an oligonucleotide may then be synthesized with the base mutation. 

Annealing of the oligonucleotide to complementary (except for the mutation) single-stranded DNA provides a primer for DNA polymerase to produce a new strand and thus incorporates the primer with the mutation.