Genetics of Down Syndrome
... 1994b). The main part of the long arm is euchromatic. AT- and GC-rich bands have characteristic sequences and can be differentiated by their typical staining features (figure 1). These bands of single copy DNA are interspersed by non-coding repetitive DNA (SINEs and LINEs). 1.3 Aneuploidy and gene c ...
... 1994b). The main part of the long arm is euchromatic. AT- and GC-rich bands have characteristic sequences and can be differentiated by their typical staining features (figure 1). These bands of single copy DNA are interspersed by non-coding repetitive DNA (SINEs and LINEs). 1.3 Aneuploidy and gene c ...
Document
... DNA degradation was determined as described in Experimental Procedures. Cells containing the plasmid pBRara-recA, carrying the recA gene under the control of the araC promoter were used. In these cells the recA gene is expressed in the presence of arabinose (RecA+) and repressed in the presence of g ...
... DNA degradation was determined as described in Experimental Procedures. Cells containing the plasmid pBRara-recA, carrying the recA gene under the control of the araC promoter were used. In these cells the recA gene is expressed in the presence of arabinose (RecA+) and repressed in the presence of g ...
Post-transcriptional control of c-erb B-2 overexpression
... Figure legend). Such results indicate that erb B-2 overexpression in SNU-1 cells was likely due to increased protein synthesis rate. To confirm this hypothesis, the synthesis rate of erb B2 protein in SNU-5 cells, closely related to SNU-1 cells, was carried out under the same experimental conditions ...
... Figure legend). Such results indicate that erb B-2 overexpression in SNU-1 cells was likely due to increased protein synthesis rate. To confirm this hypothesis, the synthesis rate of erb B2 protein in SNU-5 cells, closely related to SNU-1 cells, was carried out under the same experimental conditions ...
Drug-specific Sites of Topoisomerase II DNA
... The addition of distamycin (25 @i)to Kc cells has been shown to stimulation by dh-EPI at the 5' end of the Hi gene and only weak stimulation between the H3 and H4 genes (sites 8a and 8b in Fig. 3). markedly increase VM-26-stimulated cleavage levels in SAR regions Weaker sites stimulated by dh-EPI we ...
... The addition of distamycin (25 @i)to Kc cells has been shown to stimulation by dh-EPI at the 5' end of the Hi gene and only weak stimulation between the H3 and H4 genes (sites 8a and 8b in Fig. 3). markedly increase VM-26-stimulated cleavage levels in SAR regions Weaker sites stimulated by dh-EPI we ...
Relationships between a new type IV secretion system and the icm
... Shuman, 1998b). The A. tumefaciens vir type IV secretion system was also shown to conjugate RSF1010-related plasmids, and RSF1010 conjugation was shown to inhibit T-DNA transfer into plant cells, and result in the attenuation of virulence (Beijersbergen et al., 1992; Binns et al., 1995). At the pres ...
... Shuman, 1998b). The A. tumefaciens vir type IV secretion system was also shown to conjugate RSF1010-related plasmids, and RSF1010 conjugation was shown to inhibit T-DNA transfer into plant cells, and result in the attenuation of virulence (Beijersbergen et al., 1992; Binns et al., 1995). At the pres ...
Minireview Shifty Ciliates: Frequent Programmed
... proves to be as common as the current limited data set indicates, the euplotids may present particular advantages for generally understanding the molecular mechanism underlying ⫹1 programmed translational frameshifts. Further analyses of eRF1, as well as analysis of tRNALys, may provide clues as to ...
... proves to be as common as the current limited data set indicates, the euplotids may present particular advantages for generally understanding the molecular mechanism underlying ⫹1 programmed translational frameshifts. Further analyses of eRF1, as well as analysis of tRNALys, may provide clues as to ...
MIT Department of Biology 7.28, Spring 2005
... assortment of the alleles of the HYPHAE and BLUE genes. This means that 50% of the time you would observe tetrads of the parental class (2 hairy, white colonies and 2 bald, blue colonies) and the other 50% of the time you would observe tetrads of the non-parental class (2 hairy, blue colonies and 2 ...
... assortment of the alleles of the HYPHAE and BLUE genes. This means that 50% of the time you would observe tetrads of the parental class (2 hairy, white colonies and 2 bald, blue colonies) and the other 50% of the time you would observe tetrads of the non-parental class (2 hairy, blue colonies and 2 ...
Myb genes enhance tobacco trichome production
... supernumerary root hairs on root epidermal cells that are normally hairless (Galway et al., 1994). Previously, it was found that overexpression of the maize R gene (a mychomologous transcription factor which regulates anthocyanin synthesis in that species) under control of the CaMV 35S promoter coul ...
... supernumerary root hairs on root epidermal cells that are normally hairless (Galway et al., 1994). Previously, it was found that overexpression of the maize R gene (a mychomologous transcription factor which regulates anthocyanin synthesis in that species) under control of the CaMV 35S promoter coul ...
Gene Section CD9 (CD9 molecule) Atlas of Genetics and Cytogenetics
... CD9 is expressed by a variety of hematopoietic and epithelial cells. It is transiently expressed during development of spinal motoneurons and other fetal nervous system sites, as well as in hematopoietic development. CD9 is glycosylated (the glycosylation site is in the first extracellular loop unli ...
... CD9 is expressed by a variety of hematopoietic and epithelial cells. It is transiently expressed during development of spinal motoneurons and other fetal nervous system sites, as well as in hematopoietic development. CD9 is glycosylated (the glycosylation site is in the first extracellular loop unli ...
Lecture 3 The chromosome theory of inheritance
... • 1880s – innovations in microscopy and staining techniques identified thread-like structures • Provided a means to follow movement of chromosomes during cell division • Mitosis – two daughter cells contained same number of chromosomes as parent cell (somatic cells) • Meiosis – daughter cells contai ...
... • 1880s – innovations in microscopy and staining techniques identified thread-like structures • Provided a means to follow movement of chromosomes during cell division • Mitosis – two daughter cells contained same number of chromosomes as parent cell (somatic cells) • Meiosis – daughter cells contai ...
Transformation of Maize Cells and Regeneration of
... gene encoding GUS. As determined by histochemical assay, four of the SC716 transformants (R5, R7, R16, and R21) had detectable GUS activity 3 months post-bombardment (Table 1). Expression patterns observed in the four coexpressing callus lines varied. The number of cells with GUS activity within any ...
... gene encoding GUS. As determined by histochemical assay, four of the SC716 transformants (R5, R7, R16, and R21) had detectable GUS activity 3 months post-bombardment (Table 1). Expression patterns observed in the four coexpressing callus lines varied. The number of cells with GUS activity within any ...
How Complexity Originates: The Evolution of Animal Eyes
... which occurred early in vertebrate history and led to the duplication of phototransduction genes (Nordström et al. 2004). Following such block duplication, each set of duplicates must also diverge in function, which requires other mutations after the duplication event. For coduplication to occur wi ...
... which occurred early in vertebrate history and led to the duplication of phototransduction genes (Nordström et al. 2004). Following such block duplication, each set of duplicates must also diverge in function, which requires other mutations after the duplication event. For coduplication to occur wi ...
... Ataxia telangiectasia is a progressive cerebellar degenerative disease with telangiectasia, immunodeficiency, cancer risk, radiosensitivity, and chromosomal instability. Prognosis Poor: median age at death: 17 years; survival rarely exceeds 30 years, though survival is increasing with improved medic ...
Gene Section EXT2 (exostoses (multiple) 2) Atlas of Genetics and Cytogenetics
... nucleotide substitutions (57%), small deletions (19%) and small insertions (24%), of which the majority is predicted to result in a truncated or non-functional protein. ...
... nucleotide substitutions (57%), small deletions (19%) and small insertions (24%), of which the majority is predicted to result in a truncated or non-functional protein. ...
Pair-wise sequence alignment
... retained as the species diverges into two separate species • Genes in two species are Orthologues ...
... retained as the species diverges into two separate species • Genes in two species are Orthologues ...
Full Text - Harvard University
... There are two main concepts in Neo-Darwinian evolution theory: Genotype and Phenotype. Genotype refers to the all the genetic information that constitutes an organism. Phenotype refers to all the observable traits or characteristics of that organism. Considering gene expression as an observable trai ...
... There are two main concepts in Neo-Darwinian evolution theory: Genotype and Phenotype. Genotype refers to the all the genetic information that constitutes an organism. Phenotype refers to all the observable traits or characteristics of that organism. Considering gene expression as an observable trai ...
Pax6 lights-up the way for eye development Ruth Ashery
... OV invaginates to form the optic cup (Figure 4c). This step is completely dependent on the development of a lens placode as demonstrated by analysis of the Le-mutant embryos where the loss of Pax6 activity in the SE resulted in genetic ablation of the lens placode (Figure 4c,d). In Le-mutants the op ...
... OV invaginates to form the optic cup (Figure 4c). This step is completely dependent on the development of a lens placode as demonstrated by analysis of the Le-mutant embryos where the loss of Pax6 activity in the SE resulted in genetic ablation of the lens placode (Figure 4c,d). In Le-mutants the op ...
Studies on Chlamydomonas Chloroplast Transformation: Foreign
... have sequences that closely resemble those thought to play regulatory roles in higher plants. Taken together, the availability of chloroplast DNA mutants, the ability to correct stably deletions in the C. reinhardtii chloroplast genome with introduced homologous DNA, and the high degree of DNA seque ...
... have sequences that closely resemble those thought to play regulatory roles in higher plants. Taken together, the availability of chloroplast DNA mutants, the ability to correct stably deletions in the C. reinhardtii chloroplast genome with introduced homologous DNA, and the high degree of DNA seque ...
The cytogenetics of homologous chromosome pairing in meiosis in plants Meiosis
... Numerous plant mutants in early recombination genes show defects in chromosome pairing in addition to their recombination defects, indicating that pairing requires initiation of meiotic recombination and progression through early steps of the recombination pathway (Pawlowski and Cande, 2005; Hamant ...
... Numerous plant mutants in early recombination genes show defects in chromosome pairing in addition to their recombination defects, indicating that pairing requires initiation of meiotic recombination and progression through early steps of the recombination pathway (Pawlowski and Cande, 2005; Hamant ...
The cytogenetics of homologous chromosome pairing in meiosis in
... recombination exists also in mammals and fungi (Pawlowski and Cande, 2005). In contrast, chromosome pairing does not depend on recombination in C. elegans and Drosophila (Dernburg et al., 1998; McKim et al., 1998). Numerous plant mutants in early recombination genes show defects in chromosome pairin ...
... recombination exists also in mammals and fungi (Pawlowski and Cande, 2005). In contrast, chromosome pairing does not depend on recombination in C. elegans and Drosophila (Dernburg et al., 1998; McKim et al., 1998). Numerous plant mutants in early recombination genes show defects in chromosome pairin ...
AP Biology Meiosis Chapter 13 Guided Notes
... • In the beginning of telophase I, each half of the cell has a ____________ set of chromosomes; each chromosome still consists of two sister chromatids ...
... • In the beginning of telophase I, each half of the cell has a ____________ set of chromosomes; each chromosome still consists of two sister chromatids ...
Biology EOC Review Questions
... Variation within species was important to the development of Darwin’s theory of evolution. Which statement does individual variation help explain? ...
... Variation within species was important to the development of Darwin’s theory of evolution. Which statement does individual variation help explain? ...
Anther Development
... transcription factors related to those in yeast and mammals and contain a conserved MADS box region that probably represents the DMA binding domain (Coen and Meyerowitz, 1991). DEF (AP3) and GLO (PI) encode transcription factors that interact as heterodimers with their target DMA sequence motifs and ...
... transcription factors related to those in yeast and mammals and contain a conserved MADS box region that probably represents the DMA binding domain (Coen and Meyerowitz, 1991). DEF (AP3) and GLO (PI) encode transcription factors that interact as heterodimers with their target DMA sequence motifs and ...