Agricultural Biotechnology and Ethics

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Questions and Answers

What does the 'S' in HIrisPlex-S stand for?

  • Skin (correct)
  • Superior
  • Sensitivity
  • Sample

How many SNPs does the HIrisPlex-S system target for skin color prediction?

  • 41 SNPs
  • 17 SNPs
  • 22 SNPs
  • 36 SNPs (correct)

Which model is used for eye color prediction in the HIrisPlex-S system?

  • HIrisPlex model
  • SkinPlex model
  • IrisPlex model (correct)
  • ColorPlex model

What was the minimum amount of DNA required to obtain complete SNP profiles using the 17-plex assay?

<p>63 pg (A)</p> Signup and view all the answers

What is a key feature of the HIrisPlex website?

<p>Estimation of individual probabilities for 3 eye, 4 hair, and 5 skin color categories from input genotypes. (C)</p> Signup and view all the answers

What challenge does agricultural biotechnology aim to address?

<p>Growing demands for food and bioenergy (D)</p> Signup and view all the answers

Which of the following is NOT a key strategy for the responsible use of agricultural biotechnology?

<p>Effective marketing strategies (B)</p> Signup and view all the answers

What is metabolomics primarily focused on studying?

<p>Small molecular metabolites (B)</p> Signup and view all the answers

How does Forensic DNA Phenotyping (FDP) assist in investigations?

<p>It predicts externally visible traits from DNA. (C)</p> Signup and view all the answers

Which of the following areas is NOT mentioned as a focus of current metabolomics research?

<p>Human health applications (B)</p> Signup and view all the answers

What is a significant benefit of advancements in NMR and MS technologies?

<p>Improved understanding of molecular mechanisms (C)</p> Signup and view all the answers

Which statement about ethical concerns in agricultural biotechnology is true?

<p>They must be addressed to gain public trust. (D)</p> Signup and view all the answers

What distinct application does the IrisPlex DNA test system have?

<p>It predicts eye color. (A)</p> Signup and view all the answers

Flashcards

Growing global demands for agricultural products

Increased need for food, bioenergy, and specialty products worldwide, putting stress on agricultural production.

Environmental changes' impact on agriculture

Environmental changes (like climate change) make it harder to grow enough food and increase agricultural challenges.

Agricultural biotechnology

Using biological sciences in agriculture to improve crop yields or create new products.

Ethical considerations in agricultural biotechnology

Important moral and social questions related to using biotechnology in agriculture.

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Metabolomics

The study of small molecules (metabolites) in organisms to understand their function and state.

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Metabolomics & livestock management

Metabolomics helps improve animal health, nutrition, and farming practices.

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Forensic DNA Phenotyping (FDP)

Using DNA to predict a person's visible traits, aiding in crime investigations.

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NMR and MS advancements

Improvements in NMR and MS provide better ways to understand biological mechanisms and pathways.

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Omics sciences

Various biological sciences that analyze large-scale data on genes, proteins, or metabolites.

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HIrisPlex-S system

A DNA test system that predicts eye, hair, and skin color from trace DNA. It uses multiple assays targeting specific SNPs.

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SNPs

Single nucleotide polymorphisms; variations in a single DNA base.

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17-plex assay

A DNA assay targeting 17 SNPs related to skin color.

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HIrisPlex-S model

A statistical prediction model for skin color based on HIrisPlex-S system input genotypes.

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Forensic suitability

Effective and reliable performance on forensic DNA samples.

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Eye color prediction

Determining eye color from DNA using the IrisPlex model.

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Hair color prediction

Determining hair color from DNA using the HIrisPlex model.

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Skin color prediction

Estimating skin color from DNA using the HIrisPlex-S model.

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Statistical prediction models

Mathematical models used to predict traits from genetic data.

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SWGDAM guidelines

Guidelines to ensure quality and reliability of DNA analysis methods, especially in forensic settings.

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Trace DNA

Small amounts of DNA found at a crime scene.

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Study Notes

Agricultural Biotechnology

  • Global demands for food, bioenergy, and specialty products, coupled with environmental changes, present substantial challenges to agricultural production.
  • Agricultural biotechnology offers a promising solution, but ethical and sociocultural concerns must be addressed for widespread trust and adoption.
  • Effective solutions need to be ethical, socially responsive, relevant to diverse backgrounds, and communicated clearly to the public.
  • Ethical approaches, principled decision-making, citizen-stakeholder participation, science communication, and bioethics education are important to guide responsible agricultural biotechnology use.

Nuclear Magnetic Resonance (NMR) and Mass Spectrometry (MS) in Livestock Metabolomics

  • Advances in NMR, MS, and omics sciences have improved understanding of molecular mechanisms and pathways related to animal physiology and pathology.
  • Metabolomics is a post-genomics tool analyzing small molecular metabolites to provide insight into organism status over time.
  • Researchers are focusing on metabolomics studies in livestock due to its value in livestock management and precision dairying.
  • The goal of current research is to provide insights into the current research output from various areas of livestock, including nutri-metabolomics, disease diagnosis, reproductive disorders, pharmaco-metabolomics, genomics studies, and dairy production.

Forensic DNA Phenotyping (FDP)

  • FDP predicts visible human traits from DNA, aiding in investigations.
  • It has become an important advancement because it provides intelligence information from DNA traces helping police investigations.
  • Standard DNA profiling often has limited use for identifying unknown perpetrators.
  • The IrisPlex DNA test system, in this context, can predict eye color from trace DNA.
  • A new system, IrisPlex-S, provides simultaneous prediction of eye, hair, and skin color from trace DNA.
  • This system utilizes SNPs (single nucleotide polymorphisms) to perform these predictions.
  • A 17-plex assay, developed in accordance with SWGDAM guidelines, achieves the accuracy of 24-plex assay even with very low quantity of sample.
  • The IrisPlex-S methodology allows estimating probabilities for individual skin, eye, and hair color categories.
  • The IrisPlex-S DNA test represents the first validated tool for simultaneous prediction of eye, hair, and skin color from DNA.

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