P1 At Biology Glossary

What is it? Parental generation.

Bio Definition Added By: Christopher

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Other Similar Biology Terms:

Bio Term Ethidium bromide is A fluorescent chemical that intercalates between base pairs in a doublestranded DNA molecule. Commonly used to detect DNA following gel electrophoresis. Ethidium bromide intercalates between the stacked bases of DNA and RNA. When excited by UV light between 254 nm (short wave) and 366 nm (long wave) it emits fluorescent light at 590 nm. Due to the decreased rotation possible when it is intercalated, the DNA-ethidium bromide complex produces about 50 times more fluorescence than free ethidium bromide. When ethidium bromide stained gels are photographed on a UV transilluminator a UV filter is required to screen out the background UV from the transilluminator. Ethidium bromide is a known carcinogen.

Bio Term tumour suppressor gene is A gene encoding a protein that suppresses tumour formation. A gene that normally prevents unlimited cell division. When both copies of the gene are lost or mutated the cell is transformed to a cancer phenotype. Examples are the P53, retinoblastoma and Wilms tumour.

Bio Term binary fission is The process in which a parent cell splits into two daughter cells of approximately equal size. Simple cell division in single-celled organisms.

Bio Term provirus is A virus chromosome integrated into the DNA of the host cell.

Bio Term maternal effect is The effect of the maternal parents genotype on the phenotype of her offspring.