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Streaks

streak

1. A line or long mark of a different colour from the ground; a stripe; a vein. What mean those coloured streaks in heaven? (milton)

2. A strake.

3. (Science: chemical) The fine powder or mark yielded by a mineral when scratched or rubbed against a harder surface, the colour of which is sometimes a distinguishing character.

4. The rung or round of a ladder.

Origin: OE. Streke; akin to D. Streek a line, stroke, G. Strich, AS. Strica, Sw. Strek, Dan. Streg, Goth. Stricks, and E. Strike, stroke. See Strike, Stroke, and cf. Strake.


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Dead E. coli problem

... so wondered if anyone else has any experience with them? (the time before worked perfectly with 8 constructs, positive colonies on the PCR and re-streaks growing fine). They do seem to grow differently to DH5s. They grow very slowly initially in the 37*C incubator and produce tiny colonies, but ...

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by nikinje
Thu Feb 05, 2009 7:22 pm
 
Forum: Microbiology
Topic: Dead E. coli problem
Replies: 2
Views: 520

Streaking for Isolation

... use plenty of different techniques. But basically what you want is to significantly decrease the number of bacteria between each streak (or set of streaks). So the simple reliable and quick method I used when I had hundreds of colonies to isolate was to use sterile toothpicks: 1- Pick a colony ...

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by canalon
Wed Apr 09, 2008 3:43 pm
 
Forum: Microbiology
Topic: Streaking for Isolation
Replies: 9
Views: 1995

hair color

I have two different hair colors, and I was wondering if that is nomal. :?: my hair colors are brown with blond streaks all over and I did not do anything to change the color. from person....

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by person....
Sun Nov 25, 2007 4:30 pm
 
Forum: Human Biology
Topic: hair color
Replies: 4
Views: 910

How do you grow an isolated colony of e.coli from scratch?

... in liquid medium with selective agent. add the same volume of 30% glycerol and freeze. from glycerol? streak on selective plate with multiple streaks and pick one isolated colony. Same thing as above.

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by canalon
Tue Nov 21, 2006 5:23 pm
 
Forum: Microbiology
Topic: How do you grow an isolated colony of e.coli from scratch?
Replies: 4
Views: 6730

Help for identification of bird

Yes, you are probably correct. I did some "bird-watching" today, looking out for streaks oy yellow; i did find about 3 birds that match the description of the black naped oriole due to their distinctive black band around their head. 2 of them must be the parents ...

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by Navin
Sat Mar 25, 2006 11:06 am
 
Forum: Zoology Discussion
Topic: Help for identification of bird
Replies: 5
Views: 1008
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