Conjugation

Direct transfer of genetic material from one bacterium to another.

Two bacteria lie close together and a connection forms between them. 

After conjugation, crossing overtakes place between homologous sequences

In conjugation, DNA is transferred only from donor to recipient, with no reciprocal exchange of genetic material. 

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#Unit 11. Evolution and Behavior

Animal cognition

Some animal, especially many mammal, bird have cognitive ability that  extend to reasoning, problem solving, tool used and symbolic  communication.

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#Id: 7120

#Unit 6. System Physiology – Plant

ABA inhibits precocious germination and vivipary ABA accumulates in dormant buds ABA inhibits ga-induced enzyme production

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#Id: 3087

#Unit 3. Fundamental Processes

he gene ftsZ plays a central role in division. Mutations in ftsZ block septum formation and generate filaments.

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#Id: 10030

#Unit 4. Cell Communication and Cell Signaling

A single molecule of I-κBα binds to N-terminal domains of the p50–p65 subunits, masking their NLS.

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#Id: 1369

#Unit 4. Cell Communication and Cell Signaling

The SH2 domain binds strongly to a critical four-residue core sequence containing peptide:  Phosphotyrosine–glutamic acid–glutamic acid–isoleucine