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Found Hybrid 52 times.

Displaying results 1 to 10.

1. A-form DNA (A-DNA)
One of several forms that can be assumed by a double helix. A-DNA is stable in dehydrated conditions. This form is less common than the dominant form found under physiological conditions -- szlig-DNA. This form is also assumed by DNA-RNA hybrid helices and by regions of double-stranded RNA . It is a right-handed helix and is a more compact form than szlig-DNA.

2. Allopolyploid
A hybrid , usually a plant, which is created from two closely-related species and contains one or more extra sets of chromosome s (i.e. if each parent normally has two sets, the hybrid may have four). See polyploid .

3. Allotetraploid hybrid (amphidiploid)
A hybrid , usually a plant, of two different species which has two sets of chromosomes from each of the parent species. Also see allopolyploid .

4. Anchorage dependence
The phenomena that many mammalian cells won't culture properly unless they're grown in single layers of cells anchored to glass or plastic substrate s. This makes it difficult to culture such cells on a large scale. Only transformed cell s, hybridoma s and hematopoietic cells are easily grown in suspension cultures, which are preferred because they're easier to maintain.

5. Ascites
* Edema , or the abnormal buildup of fluid, in the abdominal cavity outside the intestines. This is often a symptom/complication of liver problems or cancer of abdominal organs. * A tumor (hybridoma) in the abdominal cavity of a genetically-engineered mouse that secretes a serum containing a desired monoclonal antibody .

6. Colony hybridization
A genetics lab technique used to identify which colonies of bacteria on an agar plate contain a particular sequence of DNA or a particular gene . The technique involves pressing a nylon or nitrocellulose membrane onto the plate so that each colony contributes a small smudge of itself to the membrane, then treating the membrane with chemicals and heat, then washing the membrane with a labeled probe to find the specific DNA sequence. The smudges which are indicated by the probe are then compared back to the colonies on the agar plate. This technique is often used in conjunction with experiments involving the making of genomic libraries.

7. Competition hybridization
A lab technique used to determine how similar two strands of single-stranded nucleic acid s are to each other by putting them with a third strand (called a standard) and observing how well they can bond with each other to become double-stranded (how well they hybridize ).

8. Cross-hybridization (cross hybridization)
The hydrogen bonding of a single-stranded DNA sequence that is partially but not entirely complementary to a single-stranded substrate . Often, this involves hybridizing a DNA probe for a specific DNA sequence to the homologous sequences of different species .

9. Cybrid
A hybrid cell or line formed by the fusion of cell parts from different individuals.

10. Denhardt's solution
A solution commonly used during probe hybridization s that involve filters (such as Southern, Northern, or Western blot s). The solution contains ficoll, bovine serum albumin, polyvinylpyrrolidone (PVP), and a high concentration of nonspecific DNA so the probe won't hybridize nonspecifically.

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