What does 1 kb ladder mean?

Product Description. 1 kb DNA Ladder allows for determining the size of double-stranded DNA from 250 – 10,000 base pairs (bp). The ladder consists of 13 double-stranded, blunt-end fragments, of sizes 250, 500, 750, 1000, 1500, 2000, 2500, 3000, 4000, 5000, 6000, 8000, and 10,000 bp (see Figure 1).

How much 1 kb DNA Ladder to load?

We recommend loading 10 μl (0.5 μg) of Quick-Load 1 kb DNA Ladder per gel lane. In general, it is recommended to load 1µl per mm of gel lane.

How do you prepare 1 kb of DNA ladder?

If you want to prepare a working stock of the 1 kb ladder with loading dye, measure amount of ladder in the tube and add the loading dye accordingly. Use water to dilute your loading dye, in the ratio of 1 part ladder, 1 part buffer, and 4 parts ddH20 (if your loading buffer is 6X).

What is the purpose of 1 kb DNA ladder?

Invitrogen 1 Kb Plus DNA Ladder is designed for sizing and approximate quantification of double-stranded DNA in the range of 100 bp to 15,000 bp. 1 Kb Plus DNA Ladder consists of 18 individual chromatography-purified DNA fragments and has a reference band at 1,500 bp for easy orientation.

What is a 1 kb DNA size standard ladder?

250 bp to 10,000 bp
1 kb DNA ladder consists of 13 linear double-stranded DNA fragments which can be used to determine the size of DNA fragments with 250 bp to 10,000 bp.

How do you dilute 1 kb ladder?

The ladder is diluted to a 1:4 solution in water for use (3 parts water for 1 part ladder). To make 100 µl, 75 µl of water are combined with 25 µl of the DNA ladder. Then, 20 µl of 6X loading dye is added and the solution is split into 60 µl aliquots (0.5 ml microcentrifuge tubes) and stored at -20 C.

What does KB mean in gel electrophoresis?

A number of proprietary plasmids are digested to completion with appropriate restriction enzymes to yield 10 bands suitable for use as molecular weight standards for agarose gel electrophoresis. The digested DNA includes fragments ranging from 0.5-10.0 kilobases (kb).

How do you dilute 100 bp DNA ladder?

This ladder is preferred by our lab because of its broad range (100 bp to 10,000 bp) and even intervals. Its stock concentration is 1 µg/µl of DNA. The ladder is diluted to a 1:4 solution in water for use (3 parts water for 1 part ladder). To make 100 µl, 75 µl of water are combined with 25 µl of the DNA ladder.

How do you dilute a ladder?

The ladder is diluted to a 1:4 solution in water for use (3 parts water for 1 part ladder). To make 100 µl, 75 µl of water are combined with 25 µl of the DNA ladder.

How much DNA ladder should I load?

For a standard electrophoresis system, we recommend loading 0.5 µg (20 µl) of the Fast DNA Ladder on the agarose gel. For a fast electrophoresis system (5 to 30 minutes separation), follow the system’s manufacturer recommendations: 5 to 20 µl load. A dilution of the ladder may be required.

What does KB mean in genes?

Genome size refers to the amount of DNA contained in a haploid genome expressed either in terms of the number of base pairs, kilobases (1 kb = 1000 bp), or megabases (1 Mb = 1 000 000 bp), or as the mass of DNA in picograms (1 pg = 10−12 g). Genome sizes of bacteriophages and viruses range from about 2 kb to over 1 Mb.

How much DNA Ladder should I load?

How does the generuler 1 KB plus DNA ladder work?

The ladder is a mixture of chromatography-purified individual DNA fragments. GeneRuler 1 kb Plus DNA Ladder can be labeled radioactively with T4 Polynucleotide Kinase. The ladder is supplied with 6X DNA Loading Dye for sample DNA.

How big is a 3.0 kb DNA fragment?

The digested DNA includes fragments ranging from 0.5-10.0 kilobases (kb). The 3.0 kb fragment has increased intensity to serve as a reference band. The approximate mass of DNA in each of the bands is provided (assuming a 0.5 μg load) for approximating the mass of DNA in comparably intense samples of similar size.

How long can you store 1 kb DNA ladder?

Use α- [ 32 P] dATP or α- [ 32 P] dTTP for the fill-in reaction. 1 kb DNA Ladder is stable for at least 3 months at 4°C. For long term storage, store at -20°C. If samples need to be diluted, use TE or other buffer of minimal ionic strength.