Mendelian genetics - peach trees and nectarines?

I have a very strange question in Mendelian genetics:





Darwin observed that seeds from peach trees may grow into trees bearing nectarines and that seeds from nectarines may grow into peach trees.


(a) Explain in full his observations.


(b) How could you demonstrate whether peach or nectarine is the dominant phenotype?





I have to say why it happens, but I even didn%26#039;t know that such things are possible. It seems that the seeds have inside recessive and dominant genes giving different fruits, but how one seed can give 2 different fruits?

Mendelian genetics - peach trees and nectarines?
Peaches and nectarines are genetically the same differing only in one gene. The peach tree population has an allele to produce a fuzzless fruit, a nectarine, or an allele for a regular fuzzy peach.





A peach tree will produce peaches if it inherits the dominant, fuzz-producing gene in two copies or one fuzzy and one hairless allele but it%26#039;ll only make nectarines if it gets the recessive, or hairless, version of the gene in two copies. Besides being fuzzless the nectarine has a few other differences from the gene but the one trait is enough to determine the presence of the allele in the tree.



makeup tips