Results 231 to 240 of about 4,160,939 (294)

IDENTIFICATION OF MAMMALIAN CHROMOSOMES

Acta Endocrinologica, 1972
ABSTRACT Quantitative cytochemistry in the form of microspectrophotometry can be of help in chromosome recognition. In most mammals, among them man, the sensitivity of these methods is, however, not sufficiently high. Fluorometric techniques permit the application of twice as high microscope resolution and many times higher sensitivity in ...
T, Caspersson, L, Zech
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IDENTIFICATION OF THE MOUSE CHROMOSOMES BY MICRODENSITOMETRY

Canadian Journal of Genetics and Cytology, 1976
Densitometric analysis has been performed on mouse chromosomes from "in vivo" preparations stained with Giemsa after trypsinisation. The characteristic curves obtained by analysing the same chromosome after different durations of trypsinisation suggest that a trypsinisation step is not always necessary to get an analysable banding pattern.
A, Léonard, G, Decat
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Identification of the Chromosomes that Control Malignancy

Nature New Biology, 1973
ACCORDING to a model which we have proposed for the genetic control of malignancy1, malignant cell transformation and its reversion are controlled by the balance between genes for expression (E) and suppression (S) of malignancy. These genes may be located on different chromosomes; E exists in normal cells but is neutralized by S and malignancy is ...
T, Yamamoto, Z, Rabinowitz, L, Sachs
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Chromosomal aberrations: formation, identification and distribution

Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis, 2002
Chromosomal aberrations (CA) are the microscopically visible part of a wide spectrum of DNA changes generated by different repair mechanisms of DNA double strand breaks (DSB). The method of fluorescence in situ hybridisation (FISH) has uncovered unexpected complexities of CA and this will lead to changes in our thinking about the origin of CA.
Obe, Günter, Pfeiffer, P., Savage, J.R., Johannes, Christian, Goedecke, W., Jeppesen, P., Natarajan, A.T., Martinez-Lopez, W., Folle, G.A., Drets, M.E.   +9 more
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Chromosome Identification by Fluorescence

Hospital Practice, 1972
In a brief three years this new technique has already demonstrated its remarkable utility as a tool for unlocking the secrets of heredity. By enabling every one of the 24 human chromosome types to be identified unequivocally, it is clarifying such problems as trisomies and translocations, providing information of immediate applicability to genetic ...
Torbjörn Caspersson, Lore Zech
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Identification of Pseudogenes in Brachypodium distachyon Chromosomes

2017
Pseudogenes are gene copies that have lost the capability to encode a functional protein. Based on their structure, pseudogenes are classified in two types. Processed pseudogenes arise by a process of retrotranscription from a spliced mRNA and subsequent integration into the genome.
Camiolo, Salvatore, Porceddu, Andrea
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Accurate identification of the human Y chromosome

Clinical Genetics, 1974
Examination by light microscopy of cells of various constitutions with one Y, two Ys, or no Y was made by six experienced cytogeneticists in order to ascertain accuracy in identification of the Y chromosome by morphologic criteria. Results showed that this approach is subject to error, especially if the quality of the spreads is not very good.
L O, Sulica, D S, Borgaonkar, S A, Shah
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Oligo-FISH barcode in beans: a new chromosome identification system

Theoretical and Applied Genetics, 2021
F. de Oliveira Bustamante, Thiago Henrique do Nascimento, Claudio Montenegro, Sibelle Dias, Lívia do Vale Martins, G. T. Braz, A. Benko-Iseppon, Jiming Jiang, A. Pedrosa‐Harand, A. C. Brasileiro-Vidal   +9 more
semanticscholar   +1 more source

Hidden Markov models for chromosome identification

Proceedings 14th IEEE Symposium on Computer-Based Medical Systems. CBMS 2001, 2002
Presents a hidden Markov model for automatic karyotyping. Previously, we demonstrated that this method is robust in the presence of different types of metaphase spreads, truncation of chromosomes and minor chromosome abnormalities, and that it gives results superior to neural networks on standard data sets.
John M. Conroy, Robert L. Becker Jr., William Lefkowitz, Kewi L. Christopher, Rawatmal B. Surana, Timothy J. O'Leary, Dianne P. O'Leary, Tamara G. Kolda   +7 more
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IDENTIFICATION OF THE SEX CHROMOSOMES IN THE BALD EAGLE

Canadian Journal of Genetics and Cytology, 1975
Karyotypes of five American bald eagles (Haliaeetus leucocephalus and H. alacanus) are compared. All had 2n = 66 chromosomes which fell into 3 size groups: A, 20 pairs of biarmed chromosomes; B, 9 pairs of acrocentric chromosomes and C, 4 pairs of microchromosomes. C-banding was done in two eagles and a heterochromatic W chromosome was identified in a
W, Au, N S, Fechheimer, S, Soukup
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