Damaged sieve elements are sealed off, but because of the processs that plug sieve plates pores, excuded phloem sap from wounds that sever sieve elements. Exudation of sap enhanced by the inclusion of;

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#Question id: 1738

#SCPH01 Biochemistry

T-cell help for antibody production:

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#Question id: 114

#SCPH05 I Biotechnology

Sphingosine is not a component of

TLS Online TPP Program

#Question id: 1758

#SCPH01 Biochemistry

The specificity of antibody secreted by a B-cell may not be the same as that of the surface Ig of the clonal parent because of:

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#Question id: 5544

#SCPH01 Biochemistry

Which embryonic membrane forms the commonly of the placenta?

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#Question id: 15730

#SCPH01 Biochemistry

Haploid plants may be obtained from culturing

1) Anther culture

2) Pollen culture

3) Stem culture

4) Ovary culture