Sentence examples for selection is required from inspiring English sources

However, one caveat of most selection-based approaches in C. elegans is that some form of negative selection is required to select against animals carrying the positive selection marker in the form of extra-chromosomal arrays (Mello et al. 1991), increasing the amount of time required to identify transgenic animals of interest.

When a polymorphism has been retained from a common ancestor it is highly unlikely to be entirely selectively neutral because strong overdominance or negative frequency-dependent selection is required to maintain all morphs in such systems [ 77- 79], and selection on traits, including color polymorphisms, is usually a strong force [ 14].

Similar to the dinner table conundrum, careful selection is required.

The issue will have been decided one way or another by the time his input into squad selection is required.

An adequate selection is required, which is discussed among key question 1.7.

Nevertheless, in our opinion, careful patient selection is required, as old age and psychological intolerance are generally compromising factors.

In cases that both dimension reduction and variable selection are required, sparse PCA (SPCA) methods are preferred.

The post specifies that people involved in "Picking/Order Selection" are required to "stand on feet for 8-10 hours," and "walk 10-15 miles a day".

These cell lines offer convenient tools for experiments where transgenes and selection are required.

We observed that CD184 negative selection, not positive selection was required for isolation of post-mitotic neurons.

For mycobacteria, when selection was required, kanamycin at 20 µg ml−1, X-gal at 50 µg ml−1, hygromycin at 50 g ml−1 and sucrose at 2% (w/v) were added to the culture media.