Genetic Material
Genetic Material - Related Videos
01:20
Genetic Material
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2024
Within the human body, a complex and detailed system of trillions of cells works in unison to sustain life. Each cell houses a nucleus, which contains 46 chromosomes divided into 23 pairs. Chromosomes are highly coiled structures made of the genetic material DNA. These chromosomes are essential carriers of genetic information, with half inherited from the mother through her egg and the other half from the father's sperm, combining to create the unique genetic makeup of an individual. • Among...
13:32
DNA Extraction from Paraffin Embedded Material for Genetic and Epigenetic Analyses
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Cited by 131 •
2011
This video demonstrates the protocol for DNA extraction from formalin-fixed paraffin-embedded material. This is a multi-day procedure in which tissue sections are deparaffinized with xylene, rehydrated with ethanol and treated with proteinase K to purify and isolate DNA for subsequent gene-specific or genome-wide analysis.
11:23
Material Constants
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2023
Source: Roberto Leon, Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA In contrast to the production of cars or toasters, where millions of identical copies are made and extensive prototype testing is possible, each civil engineering structure is unique and very expensive to reproduce (Fig.1). Therefore, civil engineers must extensively rely on analytical modeling to design their structures. These models are simplified abstractions of reality and are used to...
07:44
Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy
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Cited by 8 •
2016
This protocol describes the procedure of measuring the temperature dependence of the full set material constants of piezoelectric materials using resonant ultrasound spectroscopy (RUS).
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...
FAQs
The order of nucleotide bases carries the specific instructions that cells preserve and interpret. During replication, this sequence is copied so genetic information can be transmitted, while its use as a template for RNA connects stored information with cellular activity. Differences in sequence can therefore influence traits, gene expression, and biological variation.
DNA provides the sequence used to produce RNA, and RNA helps direct protein synthesis. This sequence-based flow links an inherited information store to the molecules that support cellular functions. Examining each stage helps explain how changes in genetic material may affect gene expression and, ultimately, observable biological characteristics.
Mutations alter nucleotide sequences, whereas recombination rearranges genetic information. These processes can generate differences among organisms and contribute to biological variation. Their effects depend on how the resulting sequence changes influence gene expression or the instructions used in protein synthesis, making them important for studying inheritance and evolutionary change.
Researchers examine how sequences are copied, transmitted, expressed, changed by mutation, and reshaped by recombination. Comparing these patterns provides a basis for understanding how traits pass between generations and how variation accumulates across organisms. The same framework connects cellular information processing with broader evolutionary relationships and the organization of life.
Sequence changes can be examined alongside their effects on gene expression and protein synthesis to investigate disease mechanisms. This approach does not treat every change as harmful; instead, it asks whether altered instructions may help explain disrupted cellular functions. Such analysis links molecular information with biological processes relevant to disease research.
Understanding how genetic information is stored, copied, expressed, and altered supports biotechnology and studies of development. Researchers can use this knowledge to relate sequence information to cellular functions, organismal traits, and changes over time. It also provides a common framework for comparing how different organisms organize and use biological information.