Neutral selection (Ka/Ks = 1)

Positive selection (Ka/Ks > 1)

Purifying selection (Ka/Ks < 1)

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#Id: 1904

#Unit 4. Cell Communication and Cell Signaling

B cell properties

1.    They are APCs

2.    They can express MHC2

3.    Have surface marker  CD19

4.    Antibodies at surface of b cell – IgM, IgD

5.    Part of Adaptive immunity

6.    B cell convert into plasma cell

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#Id: 6089

#Unit 10. Ecological Principles

The Western Ghats

Most of the deciduous forests and rain forests. This region consists of 6000 plant species of which 3000 are endemic. Originally, the vegetation in this region was spread over 190,000 km2 but has been now reduced to 43,000 km2. The region is also known for 450 species of birds, 140 mammals, 260 reptiles, and 175 amphibians.

UNISCO heritage site 2012 

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#Id: 2196

#Unit 10. Ecological Principles

Plant species richness with field age

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#Id: 793

#Unit 3. Fundamental Processes

Rho is a member of the family of hexameric ATP-dependent helicases. Each subunit has an RNA-binding domain and an ATP hydrolysis domain.

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#Id: 86

#Unit 5. Developmental Biology

Stages of commitment- 

1- Specification 

2- Determination