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Questions and Answers

What could be a consequence of continually selecting specific features in dairy cows?

  • Increased genetic diversity
  • Decreased overall genetic diversity (correct)
  • Improved milk production
  • Enhanced disease resistance

Which of the following is a potential benefit of gene therapy?

  • Elimination of all diseases
  • Replacement of damaged genes with healthy ones (correct)
  • No side effects associated with treatment
  • Guaranteed success for all patients

What is one of the uses of genetically modified (GM) plants?

  • To increase fossil fuel production
  • To enhance the taste of traditional crops
  • To produce environmentally friendly chemicals (correct)
  • To create non-renewable resources

Which of the following is NOT a concern associated with gene therapy?

<p>Decreased food production (D)</p> Signup and view all the answers

What is a purpose of using genetically engineered bacteria?

<p>To absorb heavy metals from contaminated sites (D)</p> Signup and view all the answers

Which application of genetic modification aims to enhance consumer health?

<p>Creating foods with higher nutritional value (B)</p> Signup and view all the answers

What is a potential drawback of using genetically modified organisms (GMOs) in agriculture?

<p>They may have unknown effects on the environment (A)</p> Signup and view all the answers

How might PCR (Polymerase Chain Reaction) relate to gene isolation techniques?

<p>By amplifying specific DNA sequences for analysis (C)</p> Signup and view all the answers

What is a potential benefit of using silk in veterinary medicine?

<p>It can decrease the spread of specific diseases amongst animals. (D)</p> Signup and view all the answers

Which technique is primarily used to repair or replace faulty genes?

<p>Gene Therapy (D)</p> Signup and view all the answers

What is a significant feature of CRISPR technology?

<p>It can edit a DNA sequence by cutting out or inserting nucleotide bases. (D)</p> Signup and view all the answers

When can gene therapy be performed to prevent hereditary diseases?

<p>At the embryonic stage. (B)</p> Signup and view all the answers

Which disease is specifically mentioned as a target for gene therapy?

<p>Cystic Fibrosis (B)</p> Signup and view all the answers

What is the role of modified viruses in gene therapy?

<p>To deliver genetic material into a cell’s nucleus. (D)</p> Signup and view all the answers

In agricultural applications, how can CRISPR be utilized?

<p>To develop new plant varieties indistinguishable from traditional breeding. (B)</p> Signup and view all the answers

What outcome is associated with genetically modified mosquitoes using CRISPR?

<p>Offspring that die prematurely. (A)</p> Signup and view all the answers

What is a benefit of using biotechnology in agriculture?

<p>Enhanced crop insect resistance (B)</p> Signup and view all the answers

Which of the following describes a medical application of biotechnology?

<p>Creating faster tools for disease detection (A)</p> Signup and view all the answers

What technology is associated with genetic modification of organisms?

<p>Gene cloning (C)</p> Signup and view all the answers

What is a potential risk associated with the application of genetic techniques?

<p>Ethical concerns regarding genetic manipulation (A)</p> Signup and view all the answers

Which statement best describes transgenic organisms?

<p>Organisms modified to express foreign genes (D)</p> Signup and view all the answers

What technique is commonly used for amplifying DNA sequences in biotechnology?

<p>Polymerase Chain Reaction (PCR) (A)</p> Signup and view all the answers

The use of biotechnology in medicine primarily aims to achieve what?

<p>Tailor treatments to individuals (C)</p> Signup and view all the answers

Which of the following is NOT a goal of applying biotechnology in agriculture?

<p>Lowering dependency on fossil fuels (B)</p> Signup and view all the answers

Study Notes

Healing the World

  • Reducing rates of infectious diseases saves millions of lives and improves public health.
  • Tailored treatments minimize health risks and side effects for individuals.
  • Advanced diagnostic tools enhance the precision of disease detection.

Feeding the World

  • Biotechnology improves crop insect resistance, enhances herbicide tolerance, and enables sustainable farming practices.
  • Reduced agricultural chemical use leads to a healthier consumer market.
  • Higher crop yields are achieved with fewer inputs and resources.
  • Development of crops with enhanced nutritional profiles supports food security.

Biotechnology Overview

  • Commercial exploitation of biological processes can be categorized into medicine, industry, environment, and agriculture.
  • Genetic techniques can affect Earth's biodiversity, potentially leading to reduced genetic diversity, such as in dairy cows.

Medical Biotechnology

  • GM foods can provide higher nutritional value, particularly benefiting third-world countries.
  • Gene therapy shows potential but is still experimental; not all patients respond positively, and risks include tumor formation.
  • Biotech enables efficient production of medicines like insulin.
  • Cloning genes allows for the introduction of healthy genetic material into compromised cells.

Industrial Biotechnology

  • Genetically modified (GM) plants may produce eco-friendly chemicals to replace non-renewable resources.
  • Research includes developing organisms capable of absorbing heavy metals from contaminated sites.
  • GM techniques can help control disease spread among livestock and create medications for disease resistance.

Gene Therapy

  • Involves the insertion of healthy genes into organisms to repair or replace faulty genes and improve disease resistance.
  • Can be performed on embryos to prevent hereditary diseases.
  • Regulates gene expression without needing DNA from donors.

CRISPR Technology

  • CRISPR is a method for precise DNA editing by cutting out or inserting nucleotide bases.
  • Used to correct genetic defects, treating or preventing diseases.
  • Develops new plant varieties that mimic outcomes of traditional breeding.
  • Research includes GM mosquitoes carrying genes that cause premature deaths in offspring to control populations.

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