Being Well-born: An Introduction to Heredity and Eugenics |
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AaBb agouti albino alcohol animals appear average become birth birth-rate blastomeres blastopore blastula blood body brain breeding cells cent characters child chromatin chromosomes color constitution cross defective determining Difflugia disease division dominant ectoderm effects embryo endoderm environment epilepsy epileptic Eugenics evidence example experiments F₂ fact factors feeble-minded female fertilization fowls gametes genes genetics germ germ-cells germinal haploid hereditary heredity heterozygote heterozygous homozygous human hybrid increase indicate individual influence inheritance insane instinct known male marriage matings means Mendelian ment mental mesoderm modified mother nervous normal number of chromosomes occur offspring organism original ovum pairs parent pigment plants polar body population PPSSRR PPSSRr PPSSRR probably produced progeny race recessive regards represented reproduction result RRYY selection somatic species spermatocyte spermatozoa strains syphilis tion tissues traits twins United variations various WWCC young zygote