Results 71 to 80 of about 8,207 (204)
Genetical evidence for diploidy in Phytophthora
SUMMARYA spontaneous mutant of Phytophthora drechsleri, resistant to p-fluorophenyl-alanine and two induced mutants resistant to chloramphenicol have been selected and analysed. The pattern of inheritance of the mutant phenotypes was identical and conformed to that expected in a diploid organism.
David S. Shaw, Ikram A. Khaki
openaire +1 more source
Amplification of CCND1 (cyclin D1 gene) in squamous cell carcinoma of the head and neck (SCCHN) is correlated to poor prognosis. The purpose of this study was to investigate whether CCND1 amplification is related to different subsites and also to DNA ...
Rennstam, Karin, +7 more
core +2 more sources
Diploidy confers genomic instability in Schizosaccharomyces pombe. [PDF]
Abstract Whole genome duplication, or polyploidy, has been implicated in driving genome instability and tumorigenesis. Recent studies suggest that polyploidy in tumors promotes cancer genome evolution, progression, and chemoresistance resulting in worse prognosis of survival.
Park JM, Pinski DF, Forsburg SL.
europepmc +4 more sources
Nonlinearities and Switch‐Like Behavior in Gene Expression: From Genetics to Biochemistry and Back
Modest changes in transcription‐factor or chromatin‐regulator dosage can have disproportionate effects when gene‐regulatory systems operate near nonlinear thresholds. Sigmoidal input–output relationships, chromatin and cofactor recruitment, and changes in threshold position or response steepness provide molecular routes by which quantitative dosage ...
Reiner A. Veitia, James A. Birchler
wiley +1 more source
The hypothesis that sperm aneuploidy and diploidy increase as a function of spermatogenesis impairment was addressed. Ejaculated semen samples from a series of men (n = 22) with very low total normal motile count (1 x 10(6)) was analysed in terms of ...
Gaggero, G +9 more
core +1 more source
An Analysis Of Diploidy And Dominance In Genetic Algorithms
The use of diploidy and dominance in genetic algorithms (GAs) has long been used to improve performance in time-varying optimization problems. Diploidy increases diversity in GAs by allowing recessive genes to survive in a population and become active at
Simon, Daniel J.
core
Nuclear DNA Analysis in Neuroblastoma -Significance of DNA Ploidy as a Prognostic Factor- [PDF]
The nuclear DNA content was measured by using flow cytometer from paraffin-embedded pathological materials in neuroblastomas. In 55 neuroblastomas, diploidy pattern was found in 26 (47.6%). In contrast, aneuploidy was in 29 (52.7%).
Sakai, Tsutomu
core
Objective: To determine the frequencies of disomy, nullisomy, total aneuploidy, and diploidy in the sperms of infertile men. Design: A controlled prospective study.
Kutlu, Ruhusen +5 more
core +1 more source
Chromosome counts of some Zingiberaceous species from Thailand [PDF]
The data on chromosome numbers of 22 species belonging to 10 genera of Zingiberaceae distributed in Thailand were investigated. The somatic numbers range from 20 to 48 showing diploidy and polyploidy.
Ladda Eksomtramage +3 more
doaj
ABSTRACT Genomic tools for traceability of wood products offer a powerful tool to support sustainable forestry, fight illegal logging, and improve conservation efforts. Traditional identification methods (e.g., wood anatomy, spectroscopy) are limited in resolution or scope, but genomic approaches can infer both species identity and geographic origin ...
Pauline Hessenauer +10 more
wiley +1 more source

