Genetic Correction
Genetic Correction - Related Videos
01:15
Distance Corrections
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2025
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
01:20
Power Factor Correction
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2024
The power transmission to a factory involves the transfer of apparent power, a combination of active and reactive power. The power factor measures how effectively electrical power is converted into useful work output. The ratio of the real power (KW) that does the work to the apparent power (KVA) supplied to the circuit. A poor power factor means the inductive electrical load absorbs more reactive power, causing a low lagging power factor. This results in large voltage drops across the load...
03:59
Surgical Correction for Pediatric Epiblepharon and Trichiasis
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2025
Here, we present a protocol for surgical correction for pediatric epiblepharon and trichiasis.
08:45
Genetic Crosses
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2023
To dissect genetic processes or create organisms with novel suites of traits, scientists can perform genetic crosses, or the purposeful mating of two organisms. The recombination of parental genetic material in the offspring allows researchers to deduce the functions, interactions, and locations of genes. This video will examine how genetic crosses were influential in developing Mendel's three laws of inheritance, which form the basis of our understanding of genetics. One genetic crossing...
08:50
Genetic Screens
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2023
Genetic screens are critical tools for defining gene function and understanding gene interactions. Screens typically involve mutating genes and then assessing the affected organisms for phenotypes of interest. The process can be “forward”, where mutations are generated randomly to identify unknown genes responsible for the phenotypes, or it can be “reverse”, where specific genes are targeted for mutation to observe what phenotypes are produced.Here, JoVE reviews various types of genetic...
FAQs
Specificity comes from pairing a guide RNA with a chosen genomic sequence, which positions the CRISPR-associated nuclease at that site. The nuclease then creates a DNA cut that initiates cellular repair. In practice, the guide sequence and target site are central design considerations because they determine where the correction process is directed and whether the intended gene function can be addressed.
After the DNA cut, cells can use homology-directed repair or end joining to restore the damaged region. These pathways are not interchangeable: the repair route helps determine how the cut site is resolved and therefore affects whether the desired sequence change is achieved. Comparing repair outcomes is important when evaluating the accuracy of a genetic correction experiment.
Sequence validation and unintended-edit assessment address different risks. Validation checks whether the intended genomic sequence was changed as planned, whereas unintended-edit analysis examines changes outside the desired correction. Both are necessary because a successful change at the target site alone does not establish overall accuracy, safety, or suitability for further biological or therapeutic study.
A basic workflow begins by selecting the genomic sequence to be corrected, designing a guide RNA, and delivering the relevant correction components to cells. Following editing, investigators validate the target sequence and assess unintended edits. The final evaluation considers not only whether the intended change occurred, but also its accuracy, safety, and potential long-term effects.
Genetic correction serves as an experimental tool in biology as well as a possible therapeutic strategy. In research, it can help test gene function, investigate disease mechanisms, and examine cellular biology by linking a specific DNA change with a biological outcome. These uses make it valuable for studying how altered sequences contribute to inherited conditions.
When considering inherited conditions, researchers must evaluate more than the immediate restoration of gene function or reduction of disease effects. Delivery, sequence validation, unintended edits, and long-term effects all contribute to the assessment of a correction strategy. This broader evaluation helps distinguish a promising genetic intervention from one whose biological or safety consequences remain insufficiently characterized.