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Found Directional 8 times.

Displaying results 1 to 10.

1. Bidirectional replication
A type of DNA replication where replication is moving along in both directions from the starting point. This creates two replication fork s, moving in opposite directions.

2. Cytoplasmic streaming
The directional flow of cytoplasm in some of the larger cell s. This is thought to help the cell get rid of waste products.

3. Directional cloning
DNA insert and vector molecules are digested with two different restriction enzyme s to create noncomplementary sticky end s at either end of each restriction fragment. This allows the insert to be ligated to the vector in a specific orientation and prevents the vector from recircularizing.

4. Directional selection
A process of natural selection that tends to favor phenotypes at one extreme of the phenotypic range.

5. Drift line
An accumulation of water-carried debris along a contour or at the base of vegetation that provides direct evidence of prior inundation and often indicates the directional flow of flood waters.

6. Eisenmenger's syndrome
Eisenmenger's syndrome is characterized by pulmonary hypertension and a right-to-left or bi-directional shunt. The shunt can be atrial or ventricular. Most patients can not survive beyond age 40 and demise occurs when the fraction of right-to-left shunt increases.

7. Nastic movement
A plant's response to a stimulus in which the direction of the response is independent of the direction of the stimulus. Non-directional plant movements.

8. Natural selection
The process of differential survival and reproduction of fitter genotypes ; can be stabilizing , directional , or disruptive . Better adapted individuals are more likely to survive to reproductive age and thus leave more offspring and make a larger contribution to the gene pool than do less fit individuals. The differential survival and reproductive successes of individuals in a variable population that powers the evolutionary process. When all individuals survive and reproduce (except for chance occurrences) natural selection works at a lower rate, if at all.

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