The electronic transitions of the peptide bond occur in the far UV. The intense peak at 190 nm, and the weaker one at 210–220 nm is due to the p!p* and n!p* transitions.

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#Unit 8. Inheritance Biology

In prophase I of meiosis, an inversion loop forms.

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#Unit 8. Inheritance Biology

In Paracentric inversion - a single crossover takes place in the inverted region an unusual structure results

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#Unit 8. Inheritance Biology

Dicentric bridge - Structure produced when the two centromeres of a dicentric chromatid are pulled toward opposite poles

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#Unit 8. Inheritance Biology

In paracentric inversion form,

Acentric chromatid - Chromatid that lacks a centromere

Dicentric chromatid - Chromatid that has two centromere

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#Unit 8. Inheritance Biology

Recombination is also reduced within a pericentric inversion. No dicentric bridges or acentric fragments are produced.

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#Unit 8. Inheritance Biology

Recombinant chromosomes have too many copies of some genes and no copies of others, so gametes that receive the recombinant chromosomes cannot produce viable progeny.