THE DOUBLE CHROMOSOME REPRODUCTION IN SPINACIA AND ITS CAUSES I. NORMAL BEHAVIOUR
نویسندگان
چکیده
منابع مشابه
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چکیده ندارد.
15 صفحه اولSex Chromosome Translocations in Spinacia Oleracea.
HROMOSOME 1 of Spinacia oleracea, the longest of the complement, con'tains the "alleles" X , X", and Y , that effect sex determination (ELLIS and JANICK 1960; SUTO and SUGIYAMA 1961; IIZUKA and JANICK 1962). The genotype X X is pistillate, X"X and X"X" are potentially monoecious (although X"Xm is more highly male), and X Y and X"Y are staminate. The standard chromosome 1 is heterobrachial with ...
متن کاملHeterosis, maternal and direct effects in double-muscled and normal cattle: I. Reproduction and growth traits.
Data from a two-breed group diallel experiment involving double-muscled (DM) and normal (N) cattle were analyzed to evaluate the importance of heterosis, maternal and direct effects for reproduction and growth traits. The DM cattle were from a composite of primarily Angus, Charolais, Galloway and Hereford breeds, and N cattle were crossbred cattle with at least 50% Hereford breeding. The data c...
متن کاملI-38: Chromosome Instability in The Cleavage Stage Embryo
Recently, we demonstrated chromosome instability (CIN) in human cleavage stage embryogenesis following in vitro fertilization (IVF). CIN not necessarily undermines normal human development (i.e. when remaining normal diploid blastomeres develop the embryo proper), however it can spark a spectrum of conditions, including loss of conception, genetic disease and genetic variation development. To s...
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ژورنال
عنوان ژورنال: Hereditas
سال: 2010
ISSN: 0018-0661
DOI: 10.1111/j.1601-5223.1939.tb02701.x