In three rumpless fowls the caudal vertebræ were few in number, and anchylosed together into a misformed mass.
This bird came from a family where, as I was told, the breed had kept true for twenty years; but rumpless fowls often produce chickens with tails.
On inquiry, the original breeder of these fowls stated that, from the time when he had first kept them, they had often produced fowls furnished with tails; but that these latter would again reproduce rumpless chickens.
In three rumpless fowls the caudal vertebrae were few in number, and anchylosed together into a misformed mass.
Thus the parents and grandparents of both of these new rumpless birds were well known to me and known to be fully tailed and to throw only tailed birds, with the exception of these two birds.
In comparison with the results gained with the rumpless cock, winglessness in this strain is probably dominant but impotent.
The first case is apparently illustrated by the rumpless cock (No.
In the case of the rumpless condition that arose apparently de novo in my yards, the new inhibitor showed an intermediate potency completely stopping the tail development in 1 out of 25 heterozygotes.
The second lot consists of rumpless fowl that have arisen in my yards, spontaneously, from normal blood.
The next step was to cross the otherrumpless bantam (No.
The case of therumpless fowl is important in relation to the hypothesis of inhibitors.
The second lot of rumpless fowl, namely, those that arose de novo in my yards, must now be considered.
Having, now, obtained rumpless hens, it became possible for the first time to test the inheritance of rumplessness in both parents.
The case of the rumpless fowl that arose de novo will be explained, then, as follows: Even in normal RR matings the inhibiting factor may arise by mutation.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "rumpless" in a variety of sentences. We hope that you will now be able to make sentences using this word.
