Chromosome Choreography: The Meiotic Ballet
... protein localization within RNs has demonthe SC play an important role in other strated that these structures contain recomchromosome interactions as well. For exbination proteins and has provided support ample, in Drosophila oocytes the SC for the existence of two distinct types of breaks down at t ...
... protein localization within RNs has demonthe SC play an important role in other strated that these structures contain recomchromosome interactions as well. For exbination proteins and has provided support ample, in Drosophila oocytes the SC for the existence of two distinct types of breaks down at t ...
3 | cell structure and function
... are used for locomotion. Pili are used to exchange genetic material during a type of reproduction called conjugation. Fimbriae are protein appendages used by bacteria to attach to other cells. ...
... are used for locomotion. Pili are used to exchange genetic material during a type of reproduction called conjugation. Fimbriae are protein appendages used by bacteria to attach to other cells. ...
Yeeeeeeea Haaaaaw! Grab yer hat and saddle the broncs! It`s time
... Learn all about a cell's structure and the functions of its organelles on this website. They also discuss the difference between a plant and animal cell. You are able to click on the various parts of the cell using the menu on the right side of the page. 3. Cells Alive! – http://www.cellsalive.com/c ...
... Learn all about a cell's structure and the functions of its organelles on this website. They also discuss the difference between a plant and animal cell. You are able to click on the various parts of the cell using the menu on the right side of the page. 3. Cells Alive! – http://www.cellsalive.com/c ...
eXtra Botany - Journal of Experimental Botany
... of tubulin in the reorganization of the microtubule cytoskeleton during the life cycle of plant cells. Although microtubules within each array are apparently identical in structure, plants have distinct gene sets coding for both a and b -tubulin (Guo et al., 2009). Tubulin genes are not expressed un ...
... of tubulin in the reorganization of the microtubule cytoskeleton during the life cycle of plant cells. Although microtubules within each array are apparently identical in structure, plants have distinct gene sets coding for both a and b -tubulin (Guo et al., 2009). Tubulin genes are not expressed un ...
cell-cycle progression and the generation of asymmetry in
... found for pilus biogenesis: transcription of the genes that encode components of the pilus temporally mirrors their order of assembly3,16. An alternative global analysis of cell-cycle expression came from a large-scale study of protein synthesis rates using two-dimensional (2D)-gel electrophoresis a ...
... found for pilus biogenesis: transcription of the genes that encode components of the pilus temporally mirrors their order of assembly3,16. An alternative global analysis of cell-cycle expression came from a large-scale study of protein synthesis rates using two-dimensional (2D)-gel electrophoresis a ...
Histone H3 Phosphorylation Is Coupled to Poly-(ADP
... phosphorylation must play an important role in this process. However, the targets for phosphorylation and the corresponding protein kinases are poorly defined. During the transition from the G2 phase into mitosis, relaxed interphase chromatin must be converted into mitotic condensed chromatin, a pro ...
... phosphorylation must play an important role in this process. However, the targets for phosphorylation and the corresponding protein kinases are poorly defined. During the transition from the G2 phase into mitosis, relaxed interphase chromatin must be converted into mitotic condensed chromatin, a pro ...
PCTPC201500400LSBR1_pap_plantcell 1..16
... We analyzed global transcriptome changes during synchronized cell division in the green alga Chlamydomonas reinhardtii. The Chlamydomonas cell cycle consists of a long G1 phase, followed by an S/M phase with multiple rapid, alternating rounds of DNA replication and segregation. We found that the S/M ...
... We analyzed global transcriptome changes during synchronized cell division in the green alga Chlamydomonas reinhardtii. The Chlamydomonas cell cycle consists of a long G1 phase, followed by an S/M phase with multiple rapid, alternating rounds of DNA replication and segregation. We found that the S/M ...
The Cytology of the Gram-positive Cocci
... adheres in chains after division, and consequently forms ' Medusa-head' colonies, also produces multicellular bacilli or cocci, possessing transverse cell walls, and with each cell containing a single chromatinic body, except, probably, immediately before division (Fig. 4). Similarly, in both groups ...
... adheres in chains after division, and consequently forms ' Medusa-head' colonies, also produces multicellular bacilli or cocci, possessing transverse cell walls, and with each cell containing a single chromatinic body, except, probably, immediately before division (Fig. 4). Similarly, in both groups ...
Anatomy - Exam 1 Lab
... Identify the two layers of the skin and the morphology of their component parts. Be able to identify the hypodermis and its function and relationship to the skin Identify the various types of skin and their location on the body. Relate their morphology to function. Be able to discuss the structu ...
... Identify the two layers of the skin and the morphology of their component parts. Be able to identify the hypodermis and its function and relationship to the skin Identify the various types of skin and their location on the body. Relate their morphology to function. Be able to discuss the structu ...
Inductive asymmetric cell division
... and low in the posterior sister E,20,21 while WRM-1 is low in MS cortex of the dividing EMS blastomere. APR-1, a worm homolog and high in E.22 wrm-1 and pop-1 mutants also exhibit opposite of APC (adenomatous polyposis coli protein), is also recruited to endoderm induction phenotypes; in wrm-1 mutan ...
... and low in the posterior sister E,20,21 while WRM-1 is low in MS cortex of the dividing EMS blastomere. APR-1, a worm homolog and high in E.22 wrm-1 and pop-1 mutants also exhibit opposite of APC (adenomatous polyposis coli protein), is also recruited to endoderm induction phenotypes; in wrm-1 mutan ...
Answer Keys - My Anatomy Mentor
... 2f. Chondroblasts (cytes) – produce matrix in cartilage 2g. Osteoblasts (cytes) – produce organic matrix in bone 3a Protein fibers that provide support for connective tissue 3b Three (collagen, elastic and reticular) 3c. Synthesized by blast cell types 3d. In the matrix ...
... 2f. Chondroblasts (cytes) – produce matrix in cartilage 2g. Osteoblasts (cytes) – produce organic matrix in bone 3a Protein fibers that provide support for connective tissue 3b Three (collagen, elastic and reticular) 3c. Synthesized by blast cell types 3d. In the matrix ...
Cells
... Function Digestion of compounds taken in by the cell by endocytosis Recycling of material within the cell ...
... Function Digestion of compounds taken in by the cell by endocytosis Recycling of material within the cell ...
Mutations in the NOT Genes or in the Translation
... 2015; Alhusaini and Coller, 2016). In contrast to these negative functions in expression of the genome, the Ccr4-Not complex also plays positive roles. For instance yeast Not5 promotes co-translational assembly of RNA Polymerase II (RNAPII) and SAGA, a function that correlates with the association o ...
... 2015; Alhusaini and Coller, 2016). In contrast to these negative functions in expression of the genome, the Ccr4-Not complex also plays positive roles. For instance yeast Not5 promotes co-translational assembly of RNA Polymerase II (RNAPII) and SAGA, a function that correlates with the association o ...
Cell cycle regulation during early mouse embryogenesis.
... In mammals, the beginning of embryonic development is mainly devoted to the generation of extraembryonic tissues. These structures not only ensure nutrients supply to the embryo but also play important role in the establishment of the basic body plan of the embryo. Recently, a global gene expression ...
... In mammals, the beginning of embryonic development is mainly devoted to the generation of extraembryonic tissues. These structures not only ensure nutrients supply to the embryo but also play important role in the establishment of the basic body plan of the embryo. Recently, a global gene expression ...
p66a and p66b of the Mi-2/NuRD complex
... nuclear distribution. Furthermore, wild-type subnuclear distribution of p66a and p66b depends on the presence of MBD2. Both proteins interact with the tails of all octamer histones in vitro, and acetylation of histone tails interferes with p66 binding. The conserved region 2 of p66a is required for ...
... nuclear distribution. Furthermore, wild-type subnuclear distribution of p66a and p66b depends on the presence of MBD2. Both proteins interact with the tails of all octamer histones in vitro, and acetylation of histone tails interferes with p66 binding. The conserved region 2 of p66a is required for ...
Proteomics methods for subcellular proteome analysis
... as many as 10 subcellular compartments, including nuclear and cytosolic fractions, by using a combination of several well-characterized marker proteins [6]. With this approach, the localization of proteins is assigned simultaneously to 10 different subcellular locations [6]. Although these methods d ...
... as many as 10 subcellular compartments, including nuclear and cytosolic fractions, by using a combination of several well-characterized marker proteins [6]. With this approach, the localization of proteins is assigned simultaneously to 10 different subcellular locations [6]. Although these methods d ...
Cell cycle parameters of hESC are highly similar to - HAL
... In mammals, the beginning of embryonic development is mainly devoted to the generation of extraembryonic tissues. These structures not only ensure nutrients supply to the embryo but also play important role in the establishment of the basic body plan of the embryo. Recently, a global gene expression ...
... In mammals, the beginning of embryonic development is mainly devoted to the generation of extraembryonic tissues. These structures not only ensure nutrients supply to the embryo but also play important role in the establishment of the basic body plan of the embryo. Recently, a global gene expression ...
Localization of the Microtubule End Binding Protein
... unambiguous marker of microtubule nucleation has led to uncertainty about the origin of, and continuity between, the various microtubule arrays. For instance, the absence of centrosomes from the plant cell’s spindle poles has been taken as support for the idea that spindles form by an inside-out mec ...
... unambiguous marker of microtubule nucleation has led to uncertainty about the origin of, and continuity between, the various microtubule arrays. For instance, the absence of centrosomes from the plant cell’s spindle poles has been taken as support for the idea that spindles form by an inside-out mec ...
In yeast, the pseudohyphal phenotype induced by isoamyl alcohol
... sampling is indicated in each panel. Arrows in the 1- and 2-hour samples indicate examples of multiple septin patches; the solid arrow in the 8hour sample (right) indicates a branch forming and the open arrow (left) a double septin ring. Scale bar is 5 µm. The figure does not show examples from all ...
... sampling is indicated in each panel. Arrows in the 1- and 2-hour samples indicate examples of multiple septin patches; the solid arrow in the 8hour sample (right) indicates a branch forming and the open arrow (left) a double septin ring. Scale bar is 5 µm. The figure does not show examples from all ...
A CDC45 Homolog in Arabidopsis Is Essential for Meiosis, as
... are associated with the degradation of the homologous endogenous RNA and are a hallmark of post-transcriptional gene silencing (Hamilton and Baulcombe, 1999; Waterhouse et al., 2001). Therefore, the presence of these small RNA fragments was analyzed in the CDC45 RNAi lines that had decreased levels ...
... are associated with the degradation of the homologous endogenous RNA and are a hallmark of post-transcriptional gene silencing (Hamilton and Baulcombe, 1999; Waterhouse et al., 2001). Therefore, the presence of these small RNA fragments was analyzed in the CDC45 RNAi lines that had decreased levels ...
Modifications of the E.coli Lac repressor for expression in eukaryotic
... of mammalian cells were constructed. These constructions carry the lac repressor gene (lad) fused at different positions to a nuclear localization sequence (NLS) from either the SV40 large T antigen or the adenovirus E1a. When the NLS's were fused to the lad gene at the 5' end, the protein produced ...
... of mammalian cells were constructed. These constructions carry the lac repressor gene (lad) fused at different positions to a nuclear localization sequence (NLS) from either the SV40 large T antigen or the adenovirus E1a. When the NLS's were fused to the lad gene at the 5' end, the protein produced ...
Facial Nerve
... loss of lacrimal secretion. 4. Central type of facial lesion produces all the effects described above with the difference that the effects are seen on the opposite side. This is because of interruption of corticonuclear fibres from cerebral cortex to facial nerve nucleus. These are crossed fibres. T ...
... loss of lacrimal secretion. 4. Central type of facial lesion produces all the effects described above with the difference that the effects are seen on the opposite side. This is because of interruption of corticonuclear fibres from cerebral cortex to facial nerve nucleus. These are crossed fibres. T ...
Cell nucleus
In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types have no nuclei, and a few others have many.Cell nuclei contain most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm, and the nucleoskeleton (which includes nuclear lamina), a network within the nucleus that adds mechanical support, much like the cytoskeleton, which supports the cell as a whole.Because the nuclear membrane is impermeable to large molecules, nuclear pores are required that regulate nuclear transport of molecules across the envelope. The pores cross both nuclear membranes, providing a channel through which larger molecules must be actively transported by carrier proteins while allowing free movement of small molecules and ions. Movement of large molecules such as proteins and RNA through the pores is required for both gene expression and the maintenance of chromosomes. The interior of the nucleus does not contain any membrane-bound sub compartments, its contents are not uniform, and a number of sub-nuclear bodies exist, made up of unique proteins, RNA molecules, and particular parts of the chromosomes. The best-known of these is the nucleolus, which is mainly involved in the assembly of ribosomes. After being produced in the nucleolus, ribosomes are exported to the cytoplasm where they translate mRNA.