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... The body needs cholesterol. Cells use cholesterol to make new cell membranes and some hormones. The liver makes cholesterol for the body. Some drugs can help people with high cholesterol levels. Statins block the enzyme in the liver that is used to produce cholesterol. People will normally have to t ...
... The body needs cholesterol. Cells use cholesterol to make new cell membranes and some hormones. The liver makes cholesterol for the body. Some drugs can help people with high cholesterol levels. Statins block the enzyme in the liver that is used to produce cholesterol. People will normally have to t ...
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... 53) Lipophobic molecules that are to be released by cells are stored in membrane-bound structures called ________. A) secretory vesicles B) inclusions C) the Golgi apparatus D) excretory vesicles E) the endoplasmic reticulum Answer: A Diff: 4 Page Ref: 32 54) Continuous with the outer portion of the ...
... 53) Lipophobic molecules that are to be released by cells are stored in membrane-bound structures called ________. A) secretory vesicles B) inclusions C) the Golgi apparatus D) excretory vesicles E) the endoplasmic reticulum Answer: A Diff: 4 Page Ref: 32 54) Continuous with the outer portion of the ...
Gene Section SOX10 (SRY (sex determining region Y)-box 10)
... with three alpha-helical regions and close similarity to the one found in the male sex determining factor SRY. SOX10 functions as transcription factor and structural protein in chromatin. SOX9 and SOX8 are its closest relatives among human SOX proteins. ...
... with three alpha-helical regions and close similarity to the one found in the male sex determining factor SRY. SOX10 functions as transcription factor and structural protein in chromatin. SOX9 and SOX8 are its closest relatives among human SOX proteins. ...
p53 in Hematologic Malignancies
... have activation of the c-myc gene. Although T-cell leukemia Cases of AML and MDS have been reported that have cell lines have about a 50% frequency of p53 mutations,"" high levels of p53 protein, as determined by either immunoprecipitation or immunochemistry, buthaveno detectable p53 mutations are r ...
... have activation of the c-myc gene. Although T-cell leukemia Cases of AML and MDS have been reported that have cell lines have about a 50% frequency of p53 mutations,"" high levels of p53 protein, as determined by either immunoprecipitation or immunochemistry, buthaveno detectable p53 mutations are r ...
Direct control of shoot meristem activity by a cytokinin
... activity, which is executed by the meristem-specific activation of cytokinins. The LONELY GUY (LOG) gene of rice is required to maintain meristem activity and its loss of function causes premature termination of the shoot meristem. LOG encodes a novel cytokinin-activating enzyme that works in the fi ...
... activity, which is executed by the meristem-specific activation of cytokinins. The LONELY GUY (LOG) gene of rice is required to maintain meristem activity and its loss of function causes premature termination of the shoot meristem. LOG encodes a novel cytokinin-activating enzyme that works in the fi ...
Development of a repressible mycobacterial
... showed that it could be used to construct conditional mutants of M. tuberculosis as well as to characterize them during experimental infection (7–9). Even though these tools proved to be quite useful, they have the disadvantage that Tc functions as an inducer of gene expression and has therefore to ...
... showed that it could be used to construct conditional mutants of M. tuberculosis as well as to characterize them during experimental infection (7–9). Even though these tools proved to be quite useful, they have the disadvantage that Tc functions as an inducer of gene expression and has therefore to ...
Wolbachia John H. Werren and Jeremy D. Bartos
... than to Ng/Nl (16 base pair differences), whereas the 3⬘ region is more closely related to Ng/Nl (2 base pair differences) than to Nv (36 base pair differences). A number of other methods for inferring phylogeny were also used to evaluate the sequence relationships. These methods include different n ...
... than to Ng/Nl (16 base pair differences), whereas the 3⬘ region is more closely related to Ng/Nl (2 base pair differences) than to Nv (36 base pair differences). A number of other methods for inferring phylogeny were also used to evaluate the sequence relationships. These methods include different n ...
Isolation and characterization of an RNA that binds with high affinity
... results demonstrate that factors that are important in the transcription process can bind to TAR RNA and, therefore, that the TAR decoy can inhibit transcription in vitro. In analogous experiments based on the LTR promoter, we observed similar inhibition of transcription (data not shown). The effect ...
... results demonstrate that factors that are important in the transcription process can bind to TAR RNA and, therefore, that the TAR decoy can inhibit transcription in vitro. In analogous experiments based on the LTR promoter, we observed similar inhibition of transcription (data not shown). The effect ...
H. Heldt
... biochemistry have been pointed out wherever appropriate. Thus, special attention has been given to the generation and utilization of transgenic plants. Since there are many excellent textbooks on general biochemistry, I have deliberately omitted dealing with elements such as the structure and functi ...
... biochemistry have been pointed out wherever appropriate. Thus, special attention has been given to the generation and utilization of transgenic plants. Since there are many excellent textbooks on general biochemistry, I have deliberately omitted dealing with elements such as the structure and functi ...
Plant Biochemistry
... biochemistry have been pointed out wherever appropriate. Thus, special attention has been given to the generation and utilization of transgenic plants. Since there are many excellent textbooks on general biochemistry, I have deliberately omitted dealing with elements such as the structure and functi ...
... biochemistry have been pointed out wherever appropriate. Thus, special attention has been given to the generation and utilization of transgenic plants. Since there are many excellent textbooks on general biochemistry, I have deliberately omitted dealing with elements such as the structure and functi ...
From DNA to diversity: molecular genetics and the evolution of
... the story of animal evolution has, until recently, been sorely missing one huge chapter a namely, genetics. Animals diverge from common ancestors through changes in their DNA. The major question, then, is, Which changes in DNA account for morphological diversity? The answer to this question has elud ...
... the story of animal evolution has, until recently, been sorely missing one huge chapter a namely, genetics. Animals diverge from common ancestors through changes in their DNA. The major question, then, is, Which changes in DNA account for morphological diversity? The answer to this question has elud ...
Characterization of the Phosphoenolpyruvate Carboxykinase Gene
... pEK-pckA was isolated, labelled and hybridized to PvuIIrestricted and size-fractionated chromosomal DNA from C. glutamicum. The hybridization resulted in a single signal at 4.3 kb (not shown). This result confirms that the isolated DNA fragment corresponds to a fragment within the genome of C. gluta ...
... pEK-pckA was isolated, labelled and hybridized to PvuIIrestricted and size-fractionated chromosomal DNA from C. glutamicum. The hybridization resulted in a single signal at 4.3 kb (not shown). This result confirms that the isolated DNA fragment corresponds to a fragment within the genome of C. gluta ...
Assessments
... an educated guess. a guess about how or why something happens. a statement that describes what always happens under certain conditions in nature. an explanation for events that are generally accepted as true. ...
... an educated guess. a guess about how or why something happens. a statement that describes what always happens under certain conditions in nature. an explanation for events that are generally accepted as true. ...
Environmentally Induced Plasticity of Root Hair Development in
... epidermal cells that lie over the clefs of underlying cortical cells (H position) form root hairs, in the aging primary root and in laterals, the number of root hair files is considerably reduced (Table I). In cross sections of primary roots, only three epidermal cells in the H position develop into ...
... epidermal cells that lie over the clefs of underlying cortical cells (H position) form root hairs, in the aging primary root and in laterals, the number of root hair files is considerably reduced (Table I). In cross sections of primary roots, only three epidermal cells in the H position develop into ...
Endoderm development in vertebrates: fate mapping
... the onset of gastrulation (stage 4), when cells in the middle layer lateral to the Hensen’s node are grafted into the middle layer lateral to the posterior primitive streak, where cells normally contribute to the mesoderm, almost all of the transplanted cells contribute to endoderm. These results sh ...
... the onset of gastrulation (stage 4), when cells in the middle layer lateral to the Hensen’s node are grafted into the middle layer lateral to the posterior primitive streak, where cells normally contribute to the mesoderm, almost all of the transplanted cells contribute to endoderm. These results sh ...
Preview Sample 2
... B) stores calcium C) in liver cells, it contains detoxifying enzymes D) forms transport vesicles to move proteins to the Golgi apparatus E) contains the enzyme catalase Answer: E Diff: 4 Page Ref: 33 59) Which of the following organelles is specialized for lipid and steroid synthesis? A) rough endop ...
... B) stores calcium C) in liver cells, it contains detoxifying enzymes D) forms transport vesicles to move proteins to the Golgi apparatus E) contains the enzyme catalase Answer: E Diff: 4 Page Ref: 33 59) Which of the following organelles is specialized for lipid and steroid synthesis? A) rough endop ...
Transvection and pairing of a Drosophila Hox long noncoding RNA
... 1995). This region is also associated with numerous mutations resulting in a dominant gain of function (GOF) Scr homeotic transformation, whereby sex combs (normally specific to the male T1 leg) are ectopically formed on legs of the T2 and T3 segments (Pattatucci et al. 1991). Strikingly, five diffe ...
... 1995). This region is also associated with numerous mutations resulting in a dominant gain of function (GOF) Scr homeotic transformation, whereby sex combs (normally specific to the male T1 leg) are ectopically formed on legs of the T2 and T3 segments (Pattatucci et al. 1991). Strikingly, five diffe ...
Warren, ST and Ashley, CT: Triplet repeat expansion mutations: The example of fragile X syndrome. Annual Review of Neuroscience 18:77-99 (1995).
... functional importance of its protein product, FMRP. Initial data base searches at both the nucleotide and amino acid levels, however, produced no significant homologies with any previously reported sequences and provided no immedi ate clues as to the normal function of this predicted protein (see b ...
... functional importance of its protein product, FMRP. Initial data base searches at both the nucleotide and amino acid levels, however, produced no significant homologies with any previously reported sequences and provided no immedi ate clues as to the normal function of this predicted protein (see b ...
Environmentally Induced Plasticity of Root Hair
... epidermal cells that lie over the clefs of underlying cortical cells (H position) form root hairs, in the aging primary root and in laterals, the number of root hair files is considerably reduced (Table I). In cross sections of primary roots, only three epidermal cells in the H position develop into ...
... epidermal cells that lie over the clefs of underlying cortical cells (H position) form root hairs, in the aging primary root and in laterals, the number of root hair files is considerably reduced (Table I). In cross sections of primary roots, only three epidermal cells in the H position develop into ...
Puffs and PCR: the in vivo dynamics of early gene
... The RNA preparation is derived from the method of Richards et al. (1983). Tubes were allowed to thaw on ice and then vortexed vigorously, which was as effective for the extraction of RNA as conventional grinding, and reduced variability resulting from debris sticking to the piston (data not shown). ...
... The RNA preparation is derived from the method of Richards et al. (1983). Tubes were allowed to thaw on ice and then vortexed vigorously, which was as effective for the extraction of RNA as conventional grinding, and reduced variability resulting from debris sticking to the piston (data not shown). ...
molecular-genetic study of polygenic diseases with a special focus
... The biological mechanisms that link together genetic variation and its phenotypic outcome have been for long decades one of the most challenging puzzles of biology, especially in the field of genetics. This is based on the faith that the genetic determinants behind complex traits are tractable and t ...
... The biological mechanisms that link together genetic variation and its phenotypic outcome have been for long decades one of the most challenging puzzles of biology, especially in the field of genetics. This is based on the faith that the genetic determinants behind complex traits are tractable and t ...
The pharyngeal pouches and clefts: Development, evolution
... 2.1. The first pharyngeal pouch and cleft derivatives In all jawed vertebrates the first arch forms the jaw, while the second arch forms the hyoid apparatus. These two arches are separated by the first pharyngeal pouch and cleft. During amniote embryogenesis, the pharyngeal arches grow differentially i ...
... 2.1. The first pharyngeal pouch and cleft derivatives In all jawed vertebrates the first arch forms the jaw, while the second arch forms the hyoid apparatus. These two arches are separated by the first pharyngeal pouch and cleft. During amniote embryogenesis, the pharyngeal arches grow differentially i ...