Subsequent loss or inactivation of the remaining normal allele in a somatic cell, known as loss of heterozygosity causes cancer to develop.

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#Id: 8953

#Unit 11. Evolution and Behavior

A third way that gene duplicates arise is by retrotransposition.

Here the messenger RNA from a gene is reverse-transcribed to DNA, which is then integrated into the genome.

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#Id: 9298

#Unit 6. System Physiology – Plant

A.  Chloroplasts

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#Id: 1658

#Unit 4. Cell Communication and Cell Signaling

Immunization is the process of eliciting a state of protective immunity against a disease-causing pathogen

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#Id: 4468

#Unit 13. Methods in Biology

The smaller the value of D, the better the resolution. The value of D is given by the equation.

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#Id: 111

#Unit 5. Developmental Biology

Cell differentiation is the process by which a cell acquires the structural and functional properties unique to a given cell type.