Results 311 to 320 of about 2,571,979 (334)

Genetic Characteristics of Populations

1983
Man’s influence on plant populations is often discussed in terms of habitat destruction (leading to species extinction, greater stress, habitat subdivision), pollution (greater stress, novel environments), increased dispersal (resulting in greater intermixing of gene pools, plant hybridization and even origin of new taxa), and in relation to the ...
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Genetics and clinical characteristics of keratoconus.

Acta dermatovenerologica Alpina, Pannonica, et Adriatica, 2010
Keratoconus (KC) is a bilateral, non-inflammatory, and progredient corneal ectasia that mostly occurs as a sporadic disorder, but it has long been recognized that a significant minority of patients also exhibit a family history. In recent years several candidate genes such as VSX1 and SOD1 have been proposed, and some disease-causing mutations have ...
Glavač, Damjan, Hawlina, Marko, Ravnik-Glavač, Metka, Stražišar, Mojca, Štabuc-Šilih, Mirna   +4 more
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Cancer Genetic and Molecular Characteristics

2014
Cancer results from multiple mutations. Some of these are inherited while others are spontaneous or induced. Mutations may increase the activity of oncogenes or decrease the activity of tumor suppressors. The various steps in evolution from a normal cell to a cancer cell may be classified as initiation, promotion and progression.
David S. Chang, Foster D. Lasley, Indra J. Das, Marc S. Mendonca, Joseph R. Dynlacht   +4 more
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Clinicopathological and genetic characteristics of extraventricular neurocytomas

Neuropathology, 2012
Extraventricular neurocytoma (EVN) shares histological features with central neurocytoma, but has a wide morphological spectrum. Little is known regarding its clinicopathologic nature, biological behavior and genetic abnormalities. The aim of this study is to examine the diagnostic criteria, genetic abnormalities and biological behavior of EVN ...
Jae Kyung, Myung, Hwa Jin, Cho, Chul-Kee, Park, Chun Kee, Chung, Seung Hong, Choi, Seung-Ki, Kim, Sung-Hye, Park   +6 more
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Characteristic Amplification Based Genetic Algorithms

2009
This chapter proposes a new approach, wherein multiple populations are evolved on different landscapes. The problem statement is broken down, to describe discrete characteristics. Each landscape, described by its fitness landscape is used to optimize or amplify a certain characteristic or set of characteristics.
Venugopal, K.R., Patnaik, L.M., Srinivasa, K.G.   +2 more
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Speech and language characteristics of genetic syndromes

Journal of Communication Disorders, 1981
A series of tables is presented as a diagnostic aid for the clinician when presented with a client who has a genetic syndrome. Information is provided on physical features, inheritance pattern, incidence rate, speech and language characteristics, and references.
S N, Sparks, S, Millard
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Familial Characteristics of Genetic Dyslexia

Journal of Learning Disabilities, 1968
The statistical data set forth in this report may be an invaluable contribution to the field of learning disabilities-especially to geneticists. The population sample and data collection procedures used for this study seem to have been well controlled.
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Apomixis: Developmental Characteristics and Genetics

Critical Reviews in Plant Sciences, 2006
Asexual reproduction through seeds, or apomixis, is widespread in angiosperms, although does not happen frequently. It occurs in no major crop plant, but its deployment in major crops would afford advantages for breeding and maintenance of hybrid genotypes.
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Genetic Characteristics of Hemophilia A in Chile

Human Heredity, 1980
A genetic and demographic study of 40 kindreds (113 cases) with hemophilia A, representing one quarter of all Chilean cases is reported. Only 10 sporadic cases were found. Segregation analysis of progeny from matings Aa X AY showed p = 0.2206 +/- 0.043.
R, Cruz-Coke, L, Rivera
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Integral characteristics of genetic code

Mathematical Models and Computer Simulations, 2011
Numerous data acquired for complete DNA sequences of large genomes (human and others) created the problem of their studies by biomathematics. This work presents theoretical foundations for the solution of certain problems and, primarily, for estimations of large sets of genes.
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