نتایج جستجو برای: chromosome study
تعداد نتایج: 4058431 فیلتر نتایج به سال:
This study concerns the cytotaxonomic investigations on twelve species belonging to three sections from the genus Vicia in Iran. A taxonomic background of the genus is given in brief. The previous counts reported for the genus in Index to plant chromosome number are summarized. In addition to one new count, the chromosome numbers of four species are reported for the first time. Briefly, the ...
In this study, we investigated the chromosome numbers of some endemic species distributed in East and South-East Iran. The mitotic chromosome counts were presented for the first time for six species in three angiosperm families including: Linaria iranica (2n=12), Nanorrhinum campyloceras (2n=18), Chaenorhinum grossecostatum (2n=24) (Plantaginaceae), Gaillonia bruguieri (Rubiaceae) (2n=22), Nepe...
The aim of this study was to find the footprint of selection in native Sarabi and Taleshi cattle breeds 296 cattle from two breeds were sampled and genotyped. by 40 k microarray of illumine company. 43 animals were removed because their ACR was below 0.09. Markers were filtered with minor allele frequency (MAF) equal 0.01 and Hardy-Weinberg equilibrium test (10-6). After filtering, 28782 marker...
BOOK REVRVEWS Looking Out for Science Policy. Energy Standards for Bi Fa y.................... House Reopens Nerve Gas Issue.......................... Ma Bel Losing Grip on Old Markets......................... No Veto for States on Radwaste Sites......................... Briefing: AMA's New Ethics Code Is Mjo Break from Past; House Votes Metric Board An Extensio After Debate; Science Teachers t...
objective: microdeletions of the y chromosome long arm are the most common molecular genetic causes of severe infertility in men. they affect three regions including azoospermia factors (azfa, azfb and azfc), which contain various genes involved in spermatogenesis. the aim of the present study was to reveal the patterns of y chromosome microdeletions in iranian infertile men referred to royan i...
BOOK REVRVEWS Looking Out for Science Policy. Energy Standards for Bi Fa y.................... House Reopens Nerve Gas Issue.......................... Ma Bel Losing Grip on Old Markets......................... No Veto for States on Radwaste Sites......................... Briefing: AMA's New Ethics Code Is Mjo Break from Past; House Votes Metric Board An Extensio After Debate; Science Teachers t...
background: chromosome abnormality (ca) including sex chromosomes abnormality (scas) is one of the most important causes of disordered sexual development and infertility. scas formed by numerical or structural alteration in x and y chromosomes, are the most frequently ca encountered at both prenatal diagnosis and at birth. objective: this study describes cytogenetic findings of cases suspected ...
A karyotypic study was performed on seven species of Hordeum Genus including, H. vulgare, H. spontaneum, H. glaucum, H. distichon, H. geniculatum , H. bulbosum and H. violaceum. According to the cytological studies in the laboratory, chromosome numbers and ploidy levels of species were identified. Chromosome analysese including the length of each chromosome, long and short arms length and long ...
In this study, chromosome analyses were performed on 70 infertile Azoospermic and Oligospermic (<20 million/ml) men, and also cultures of peripheral blood lymphocytes by high resolution banding method were analysed as well. It is revealed 8 (11.43 percent) men with chromosomal abnormality. There were 31.4 percent patients with azoospermia and 68.6 percent with oligospermia from several thousand...
A karyotypic study was performed on seven species of Hordeum Genus including, H. vulgare, H. spontaneum, H. glaucum, H. distichon, H. geniculatum , H. bulbosum and H. violaceum. According to the cytological studies in the laboratory, chromosome numbers and ploidy levels of species were identified. Chromosome analysese including the length of each chromosome, long and short arms length and long ...
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