In the bacterial genome, the minimum length of promoter that could provide an adequate signal is 12 bp.  The minimum length required for unique recognition increases with the size of genome, a problem in eukaryotic genomes.

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#Id: 5348

#Unit 10. Ecological Principles

Many populations breed seasonally, often once a year some are quarterly or monthly.

These are iteroparity or semelparity.

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#Id: 6721

#Unit 8. Inheritance Biology

Horizontal gene transfer (lateral gene transfer) is the non-sexual movement of genetic information between genomes. 

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#Id: 7005

#Unit 5. Developmental Biology

 Precursor cell, is widely used to denote any ancestral cell type (either stem cell or progenitor cell) of a particular lineage; it is often used when such distinctions do not matter or are not known.

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#Id: 2944

#Unit 3. Fundamental Processes

Most chromosomal replicons do not have a termination region like that of bacteria at which the replication forks cease movement and (presumably) dissociate from the DNA. 

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#Id: 7702

#Unit 1. Molecules and their Interaction Relevant to Biology

                                                             Omega loop