If a flatworm is cut into three pieces, the middle piece will regenerate a head from its anterior end and a tail from its posterior end.

TLS Online TPP Program

#Id: 3306

#Unit 3. Fundamental Processes

Unlike base excision repair, the nucleotide excision repair enzymes do not recognize any particular lesion. Rather, this system works by recognizing distortions to the shape of the double helix, such as those

caused by a thymine dimer or by the presence of a bulky chemical adduct on a base.

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#Id: 2059

#Unit 8. Inheritance Biology

Quantitative trait loci (QTLs)- Chromosomal regions containing genes that influence a quantitative trait.

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#Id: 3513

#Unit 2. Cellular Organization

In the fruit fly, gene sizes have a bimodal distribution—many are short but some are quite long

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#Id: 9520

#Unit 6. System Physiology – Plant

The chorismate mutase Cmu1 secreted by U. maydis to reduce the accumulation of salicylic acids and therefore reduce the intensity of the defense response at the site of infection

TLS Online TPP Program

#Id: 7778

#Unit 2. Cellular Organization

Eight approximately 100-nm long filaments extend into the nucleoplasm with the distal ends of these filaments joined by a terminal ring, forming a structure called the nuclear basket.