an ovalbumin gene has three introns and interrupting the coding sequences or exons. how many r-loops will be observed if dna of the gene and cytoplasmic mrna are mixed under conditions that allow hybridization? how many r-loops will be observed if nuclear pre-mrna is used? illustrate what this would look like.

Respuesta :

One of the three genes that make up the ovalbumin gene family in chicken, "ovalbumin Y," has been fully sequenced.

From the comparison with the ovalbumin gene sequence and from the map previously created by electron microscopy research, it is possible to determine the precise placement of exons. A sequence coding for an ovalbumin-like protein has been kept by selective pressure during the Y gene's evolution. The reading phase, the placement of splice junctions, and the length of the protein-coding exons are identical to those of the ovalbumin gene. The overall homology of the Y and ovalbumin protein coding sequences is 72.6%, with an amino acid sequence homology of 58%. Clusters of base alterations in coding sequences, which frequently seem to be associated with the formation of direct repetitions, have a disproportionately high frequency.

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