In case of nested PCR, the target sequence is amplified using a pair of PCR primers, and a portion of the amplification product is reamplified using another pair of PCR primers complementary to the regions located immediately beyond the 3'-ends of the first pair of primers.

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#Unit 8. Inheritance Biology

if their positions are altered by an inversion, their expression may be altered, an outcome referred to as a position effect.

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#Unit 8. Inheritance Biology

An inversion moves a wild-type allele (red eyes) at the white locus in Drosophila to a chromosomal region that contains highly condensed, the wild-type allele is not expressed in some cells, resulting in a eye consisting of red and white spots.

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#Unit 8. Inheritance Biology

Inversion homozygous- No special problems arise in meiosis.  Inversion heterozygous- Two chromosomes form an inversion loop

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#Unit 8. Inheritance Biology

Heterozygous for inversions also exhibit reduced recombination among genes located in the inverted region.

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#Id: 2131

#Unit 8. Inheritance Biology

In prophase I of meiosis, an inversion loop forms.

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#Id: 2132

#Unit 8. Inheritance Biology

If a single crossover takes place in the inverted region an unusual structure results