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Spacer DNA is a region of non-coding DNA between genes. The terms intergenic spacer (IGS) or non-transcribed spacer (NGS) are used particularly for the spacer DNA between the many tandemly repeated copies of the ribosomal RNA genes.In bacteria, spacer DNA sequences are only a few nucleotides long. In eukaryotes, they can be extensive and include repetitive DNA, comprising the majority of the DNA of the genome. In ribosomal DNA, there are spacers within and between gene clusters, called internal transcribed spacer (ITS) and external transcribed spacers (ETS), respectively. In animals, the mitochondrial DNA genes generally have very short spacers. In fungi, mitochondrial DNA spacers are common and variable in length, and they may also be mobile.Due to the non-coding nature of spacer DNA, its nucleotide sequence changes much more rapidly over time than nucleotide sequences coding for genes that are subject to selective forces. Although spacer DNA might not have a function that depends on its nucleotide sequence, it may have sequence-independent functions.Spacer DNA has practical applications that enable researchers and scientists to examine interactions between CRISPR proteins and bacteriophages.
Just a general question as ive got the same one on TTA at the mo
Do you have rules and standards in regard to glass (all one sheet not tiles) splash backs in relation to gas cookers
as they must have a non combustible surface behind glass or stainless steel and does this imply to glass tiles
jay
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hi, my kitchen floor tile grout is looking a bit dull.
I've gone over the whole floor with a stiff brush and mixture of soap, bleach and water and its brought it all up nice and bright, apart from around the oven and hob where it is still dull.
I think its from oil splashes etc as the...
Hello,
Just tiled a bathroom with these tiles.
Relieve Urbana Gris Wall Tile
I used 2mm spacers with these tiles. Some of the tiles were not perfect in size or the grout line pattern did not always match perfectly with the next tile to the right or above/below etc. So I made sure they...
I'm starting a job tmw...where the customer wants a glass splashback which will be cut to size in in the cooker hood area then tiles on either side...
I'm not sure how thick the glass splashback is, but the tiles are 9.5mm plus 4mm apprx adhesive..apprx 14mm total. How will I bring the glass...
I am going to attempt a small tiling job myself in the bathroom of bath and basin splashbacks, plus shower splashbacks. Any recommended materials to use for a novice women tiler - or advice? Thanks peeps xx
Are larger tiles easier to work with, anyone recommend the best tile cutter?
bunnycd
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Anyone ever come across these??:yikes:
Might be handy when doing certain face pegged jobs, but don't think I would ever use them myself.......
Tile Spacers | Smart Spacers
Gents (and Ladies) - dont know if you can help but on training course the guy recommended a small plastic piece that came in varying sizes that allowed you to wedge in against wall and ceiling, whilst you marked off cutting points on tile- the plastic piece in effect gave you the 2 grout...
Hi,
I'm new to the forum.
We recently hired a Tiler who I got in touch with through another forum and he has done a poor job.
What happened was we were quoted £*** by one company to do the splash-back in our newly fitted kitchen, I asked on this other forum in tiling section how much it...
snadge
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uneven
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Got to remove some tiles from kitchen splash back...tiles are on plasterboard, which is dot and dabbed to wall. Removing tiles is removing plasterboard also. Ok to cut out plasterboard and replace just in the splashback area?
Cheers
Hi All,
After a bit of help, I'm trying to work out the best way to lay the tile trim around the splash back I'm doing on a window. I'm using this trim .
I'm tiling up to the bottom of the wall cabinets (one is flush to the window) so I've layed the tile trim down the side of the window/the...
diyer2011
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.....for thicker tiles :thumbsup:
Got speaking to Colin at Kwiksplit on Thursday and he mentioned he had just got these in from Raimondi (I do love the Italian manufacturers:thumbsup:) - 8mm high spacers with a leg that snaps off to give you 'T' pegs - next day I got a bag as a sample in the...
I'm laying my 1st polished marble floor for my sister and need some advise. She has a new screed floor (been down about 2 months) and has wet underfloor heating installed which has been on up until a week ago and is perfectly level with no joins / cracks in it. the tiles are 600 x 600 x 12mm...
mrgdclark
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Look pretty decent, I've never seen these before. A bit expensive in my opinion.
Anyone ever used them ? I imagine the pro's may laugh at them, but may be good for the tiling novice ?
kevg
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Members,
I'm retiling the splash area of a shower. A shower mixer joint started leaking very slowly, so tiles and plaster had to be removed to rectify the leaking joint. The joint seems fine now, and the wall has been replastered and had over 6 weeks to dry.
I'm not planning on retiling the...
Ito.Lemma
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Hi,
I need to tile behind the hob. Given that there will be a lot of oil spits and the like, would porcelain be likely to stain?
Would an impregnator sealer be enough to stop potential problems?
Thanks...
beneprry
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