There is two kind of photo response

1. Red/Far-red 

2. Blue Light

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#Id: 8954

#Unit 11. Evolution and Behavior

As a chromosome with a new gene duplicate spreads through a population, there is polymorphism in the number of copies of the gene that individuals carry. This situation, called copy number variation.

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#Id: 2595

#Unit 13. Methods in Biology

Oligonucleotide-directed mutagenesis

The basic PCR mutagenesis system involves the use of two primary PCR reactions to produce two overlapping DNA fragments, both bearing the same mutation in the overlap region; this technique is thus termed overlap extension PCR .

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#Id: 4601

#Unit 13. Methods in Biology

If cells that have incorporated a high level of BrdU are exposed to light, they will photolyse; this has been used to selectively kill newly dividing cells.

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#Id: 8030

#Unit 1. Molecules and their Interaction Relevant to Biology

Desmosine is formed from four Lys residues

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#Id: 5959

#Unit 10. Ecological Principles

Invertebrates generally have fairly high production efficiencies  (about 10–50%) than vertebrate. Ectotherms, typically have production efficiencies of around 10%, and birds and mammals, which are endotherms, have production efficiencies in the range of 1–2%.