The New Encyclopaedia Britannica, Volume 7Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 998
... normal human male has the chromo- some formula XY and the female XX . Since only one member of each pair of sex chromosomes is transmitted through the gametes , normal human sperm are of two types ( Y or X ) , whereas normal eggs all ...
... normal human male has the chromo- some formula XY and the female XX . Since only one member of each pair of sex chromosomes is transmitted through the gametes , normal human sperm are of two types ( Y or X ) , whereas normal eggs all ...
Page 1000
... normal pigmentation , and aa is al- bino . Thus , it frequently happens that both parents of an albino are phenotypically normal but are genotypically heterozygous ( Aa ) , both carrying the albino gene a . The combinations that can ...
... normal pigmentation , and aa is al- bino . Thus , it frequently happens that both parents of an albino are phenotypically normal but are genotypically heterozygous ( Aa ) , both carrying the albino gene a . The combinations that can ...
Page 1008
... normal pigment ) in human populations . Only albino ( aa ) and normal phenotypes ( Aa or AA ) can actually be observed . If in a population of 1,000 people there are found to be 10 albino ( aa ) individuals ( q2 = 1 % , or .01 ) , by ...
... normal pigment ) in human populations . Only albino ( aa ) and normal phenotypes ( Aa or AA ) can actually be observed . If in a population of 1,000 people there are found to be 10 albino ( aa ) individuals ( q2 = 1 % , or .01 ) , by ...
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acid activity adaptation albite allegory analcime animals atoms bipolar cells birds bladder blood body called cause cells cellulose centimetres centre century changes chemical colour common cornea cotton countries currency disease effect electrical evidence evolution example excretion Existentialism Fabales fabrics falconiforms farm fascism fatigue Fatimid federal feldspar feldspathoids fencing ferns ferrite festivals fibres field filaments filtrate Finland fire fluid function gametophyte genera glands glomeruli groups important increase jute kidney Lake Eyre layer light magnetic marriage material membrane ment metres millimetres modern molecules movements muscle natural nerve normal occur optic organs percent plants plasma pressure produced properties protein renal result retina rhodopsin social sodium sorus species spinning sporangia spores structure surface temperature textile tion tissue tubule ture types United ureter urethra urine usually vision visual wool yarns