Journal of Genetics, Volume 5Cambridge University Press, 1916 - Genetics |
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Page 25
... appearances give in this case a rough , but by no means accurate , indication of genetic behaviour . Allowing however for some error in the classification of the families , the proportions in which the aberrant forms are produced by the ...
... appearances give in this case a rough , but by no means accurate , indication of genetic behaviour . Allowing however for some error in the classification of the families , the proportions in which the aberrant forms are produced by the ...
Page 31
... appearance of rogues from types we plainly have to deal with an irregular phenomenon . The gametes capable of producing rogues are given off sporadically and not in accordance with any system that we can perceive . This is abundantly ...
... appearance of rogues from types we plainly have to deal with an irregular phenomenon . The gametes capable of producing rogues are given off sporadically and not in accordance with any system that we can perceive . This is abundantly ...
Page 40
... appearance. This deduction, which could only be assumed in the earlier account (Journ. Gen. 1912, p. 230), is now confirmed by direct experiment. It was previously pointed out that agouti-blacks must, on the hypothesis put forward, be ...
... appearance. This deduction, which could only be assumed in the earlier account (Journ. Gen. 1912, p. 230), is now confirmed by direct experiment. It was previously pointed out that agouti-blacks must, on the hypothesis put forward, be ...
Page 37
... appearance of agoutis in litters from black parents led to the framing of a hypothesis which may be briefly recapitulated before giving an account of the further experi- ments which I have made during the past two years . On that ...
... appearance of agoutis in litters from black parents led to the framing of a hypothesis which may be briefly recapitulated before giving an account of the further experi- ments which I have made during the past two years . On that ...
Page 38
... appearance of a rabbit which contains E , but lacks the agouti factor , A. Whether D is present or not such animals are normal blacks . But when A is present in animals homozygous for E their appearance differs according as they are ...
... appearance of a rabbit which contains E , but lacks the agouti factor , A. Whether D is present or not such animals are normal blacks . But when A is present in animals homozygous for E their appearance differs according as they are ...
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Common terms and phrases
4th fingers absence agouti agouti-black androconia appearance BBBA bird blue scales breast and flank bred bursae cells characters chromosomes colour condition cross cross-overs DDEEAA diploid doubles experiments external genitalia F₁ F₂ factors feathers female parent floribunda flowers forewing formosanus fully hoary gametes gave GgTt glabrous grossulariata gynandromorphs half-hoary halved gynandromorphs hermaphrodites heterochroic heterozygous homozygous hypothesis individuals inflorescence inheritance inter intermediate isabellina Journ JOURNAL OF GENETICS Kewensis lacticolor large number left side male parent male Reeves mating Mendelian mosaic musical mutation normal obtained occur offspring ovaries ovipositor parent species parthenogenesis pattern pedigree phalanx plants PLATE plumage pods produced quarter-hoary R. C. PUNNETT rachis ratio recessive recorded reevesi Right side male rogues seed segregation Series Sesamoid bones sexual side female skiagraphs somatic sterile Swinhoe testis tetraploid thigh-tuft tortoiseshell cat two-carpellary typical varieties Versicolor verticillata wings yellow
Popular passages
Page 292 - V *T1 z ^ c aa ^ a ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az...
Page 92 - WolfBan ducts which are present and derived from the non-potent elements; and the Wolffian bodies are given in somatic division. Thus the free-martin with a potent bull twin is the result of a division of a male zygote, so that the somatic determinants are equally divided, the genital determinants unequally divided, the potent going to the one twin, the potent bull, the non-potent genital determinants to the free-martin.
Page 173 - ... 15), whose work was exceedingly carefully executed, but whose conclusions had to be retracted eventually as they were too sweeping and based on insufficient data. Farmer and Digby ('14) found that the "total amount of chromatin substance in the nucleus of each of two types of hybrids known as Primula kewensis is the same. The nuclei of the one form of hybrid contains twice as many chromosomes as the nuclei of the other type, but the increase in number is associated with a corresponding diminution...
Page 79 - ... 1. Lateral. a. Ovary on one side. Testis on the other. b. Two ovaries on one side. Testis on the other. c. One ovary on one side. Two testes on the other. d. Two ovaries on one side. Two testes on the other. 2. Unilateral. Ovary or testis on one side. Ovary and testis on the other.