A complementation test (or cis-trans test) is used to determine whether two recessive mutations causing the same phenotype occur in the same gene or in different genes. In the trans configuration, if the mutations are on different genes,...

Ames test was developed by Bruce N. Ames in 1970s to test for determining if the chemical is mutagens. Ames test it is a biological assay to assess the mutagenic potential of chemical compounds. It utilizes bacteria to test whether a...

The 1943 Luria–Delbrück experiment, known as the "Fluctuation Test," demonstrated that mutations in bacteria occur randomly rather than as a directed response to environmental stress, such as viral infection. By showing wide variation in...

This video is answering the question of what is DNA mutation.

A mutation is a random change in the DNA. Mutations can be neutral, which means it does not cause a change in a trait of the organism, or it could cause a beneficial or a harmful mutation. There are a few different types of mutations -...

The infamous “serial killer gene� is the monoamine oxidase-A gene, also known as the MAO-A gene or the warrior gene. It codes for an enzyme that metabolizes neurotransmitters such as dopamine, norepinephrine, and serotonin. Dopamine...

A change in a DNA sequence.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...

SARS swept the globe amid fears of a lethal super-virus. Scientists hurriedly tried to find a cure and discovered that the SARS virus came from a very unlikely source.



Biology - Cells And DNA - Learni

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Genetic variation produces new characteristics and, over generations, drives the evolution of species. But how do new gene types arise and what are the processes behind evolution? Biology - Adaptation And Evolution - Learning Points....

Examples of physical and behavioural adaptations which allow plants and animals to survive in some of the most challenging habitats on Earth. Biology - Adaptation And Evolution - Learning Points. Animals and plants survive in diverse...

What makes HIV the world's most deadly virus? Its abilities to constantly evolve and to attack the body's immune system lie at the heart of its deadly nature. Biology - Cells And DNA - Learning Points. Human Immunodeficiency Virus (HIV)...

What is natural selection and how does it work?
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Life processes - Living things in their environmen
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Learning Points
Genes are passed down from both parents t
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their...

इस वीडियो में माइटोसिस की प्रक्रिया का विस्तार से वर्णन किया गया है। इसमें कोशिका विभाजन के मुख्य चरणों और गुणसूत्रों के व्यवहार पर चर्चा की गई है। माइटोसिस विकास, कोशिका मरम्मत, और अलैंगिक प्रजनन में महत्वपूर्ण भूमिका निभाता है।...

Explore the phenomenon of hermaphroditism in animals such as snails and worms, where individuals possess both male and female reproductive organs. This segment explains how hermaphroditism benefits species in terms of reproduction and...

In this video, we will explore the core concepts of GraphQL, including schemas, queries, mutations, and resolvers. Learn how to define GraphQL schemas, write queries and mutations, and implement resolvers to fetch and manipulate...

After 40 years of trying, why don’t we have an HIV vaccine? Did you know that even without a vaccine, we have antiviral medication that is 99 percent effective at preventing HIV? So why isn’t that good enough? The U.S. and the world have...

The infamous “serial killer gene” is the monoamine oxidase-A gene, also known as the MAO-A gene or the warrior gene. It codes for an enzyme that metabolizes neurotransmitters such as dopamine, norepinephrine, and serotonin. Dopamine and...

In this video, you will learn how to reorganize GraphQL extension code.
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This clip is from the chapter "Extending the GraphQL API" of the series "The Complete Strapiâ„¢ Course with Plugins and Deployment".In this section, you...

In this video, you will learn how to apply an auth scope to GraphQL operations.
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This clip is from the chapter "Extending the GraphQL API" of the series "The Complete Strapiâ„¢ Course with Plugins and Deployment".In this...

In this video, you will learn how to create a custom resolver.
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This clip is from the chapter "Extending the GraphQL API" of the series "The Complete Strapiâ„¢ Course with Plugins and Deployment".In this section, you will...

In this video, you will learn how to extend the schema (custom mutation).
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This clip is from the chapter "Extending the GraphQL API" of the series "The Complete Strapiâ„¢ Course with Plugins and Deployment".In this section,...

In this video, you will learn about extensions such as Nexus and GraphQL SDL.
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This clip is from the chapter "Extending the GraphQL API" of the series "The Complete Strapiâ„¢ Course with Plugins and Deployment".In this...

In this video, you will learn about the GraphQL plugin and understand how it works.
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This clip is from the chapter "Extending the GraphQL API" of the series "The Complete Strapiâ„¢ Course with Plugins and Deployment".In this...

In this video, we will cover GraphQL mutations.
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This clip is from the chapter "Working with GraphQL" of the series "The Complete Strapiâ„¢ Course with Plugins and Deployment".In this section, we will start working with...