Abstract
dency was strong enough to distort the expected Mendelian ratios to the extent of 5.27 times the probable error in the straight F2 generation, and 6.27 times the probable error in the back cross generation. These numbers are based on a total population of 2435 individuals (1146 F2 and 1289 back cross) and are therefore quite significant. All body measurements 'likewise show a definite tendency for the factors of size and structural peculiarities to form specific groups. All the characters of each parental species tend to associate together in inheritance. There is no apparent incompatibility between the chromosomes of the two species, for, so far as known, all combinations are viable, yet the chromosomes of each species tend to segregate as a group and not at random. These associated systems of specific characters are completely destroyed in the F2 generation, where all characters behave as in a common Mendelian system. What the mechanism is which holds them together in the F1 generation is unknown at present. 1 Contribution from the Genetics Laboratory of the Bussey Institution, Harvard University.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
