In the DNA molecule the genes located on the newly synthesized strand are active and genes located on the complemented strand are blocked from transcription ... Two complementary DNA strands carry unequal amount of genetic information ... The diploid eukaryotic cell has two alleles of each gene, so if two homogenous chromosomes are of the opposite type,
at least one allele will be active.
An AB phenotype is impossible using your model. Both sites must be transcribed.
“at least one allele will be active” means allele A, B or both.
There is no such thing as an AB allele. Got it? There is an A and a B. They are different versions of the SAME GENE. Understand? They have the same location on the chromosome. When the two chromosomes are lined up side by side, they are right next to each other. An A on one strand, a B on the other.
Do not worry, I know genetics at least within boundary of this papers. I may misspoke, but you too wasn’t in a gratest shape:“ . they have the same location on the chromosome . ” not on the same but on homologous chromosomes, but I new what you ment.
We demonstrated the theoretical model in which only one strand of DNA molecule is transcribed.
An AB blood type is impossible.
Today is two late and I have to go to work at 6 AM, but tomorrow (evening) can you draw the diagram of diploid cell and demonstrate that this is impossible to have AB blood type per my model and I will prepare my diagram.
Thanks a lot,
Mark