The phosphorylation state of T14 and Y15 is controlled by a dual-specificity protein kinase known as Wee1 and a pair of dual-specificity phosphatases, Cdc25B and Cdc25C (Threonine 14 is not phosphorylated in S. pombe CDK1)

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#Id: 5375

#Unit 10. Ecological Principles

Mark-recapture technique can have drawbacks;

1. Some animals that have been marked may learn to avoid the traps. 
2. Recapture rates will then be low, resulting in an overestimate of population size.

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#Id: 5308

#Unit 7. System Physiology – Animal

Isovolumetric Ventricular Contraction As soon as ventricular pressure exceeds atrial pressure, the AV valve closes. 

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#Id: 6831

#Unit 8. Inheritance Biology

Phenotypic variation can be attributed to genetic and environmental influences. 

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#Id: 5658

#Unit 7. System Physiology – Animal

The membranous labyrinth more or less duplicates the shape of the bony channels and is filled with a K+-rich fluid called endolymph

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#Id: 4046

#Unit 2. Cellular Organization

In the case of human chromosomes, approximately 300 G bands can usually be distinguished during metaphase. A larger number of G bands (in the range of 800) can be observed in prometaphase chromosomes because they are more extended than metaphase chromosomes.