Genetic Engineering for Enhanced Yield

Description: This quiz is designed to test your knowledge of genetic engineering techniques used to enhance crop yield.
Number of Questions: 15
Created by:
Tags: genetic engineering crop yield biotechnology
Attempted 0/15 Correct 0 Score 0

Which genetic engineering technique involves the insertion of a foreign gene into the genome of a crop plant?

  1. Transgenesis

  2. Cisgenesis

  3. Gene Editing

  4. Mutagenesis


Correct Option: A
Explanation:

Transgenesis involves the transfer of a gene from one organism to another, resulting in the production of a genetically modified organism (GMO).

What is the primary goal of genetic engineering in agriculture?

  1. Enhanced Yield

  2. Improved Nutritional Value

  3. Resistance to Pests and Diseases

  4. All of the above


Correct Option: D
Explanation:

Genetic engineering aims to improve various aspects of crop plants, including yield, nutritional content, and resistance to pests and diseases.

Which genetic engineering technique allows for precise modification of the genome at specific locations?

  1. Transgenesis

  2. Cisgenesis

  3. Gene Editing

  4. Mutagenesis


Correct Option: C
Explanation:

Gene editing techniques, such as CRISPR-Cas9, enable targeted changes to the DNA sequence, allowing for precise modification of gene expression.

What is the term used to describe the transfer of genes from one species to another?

  1. Transgenesis

  2. Cisgenesis

  3. Gene Editing

  4. Inter-species Hybridization


Correct Option: D
Explanation:

Inter-species hybridization involves the crossing of two different species to produce offspring with a combination of genetic traits from both parents.

Which genetic engineering technique involves the overexpression of a gene to enhance its expression?

  1. Gene Silencing

  2. Gene Editing

  3. Gene Amplification

  4. Gene Replacement


Correct Option: C
Explanation:

Gene amplification involves the duplication of a gene or gene region, resulting in increased expression of the encoded protein.

What is the term used to describe the process of introducing a gene from a wild relative into a crop plant?

  1. Transgenesis

  2. Cisgenesis

  3. Introgression

  4. Gene Editing


Correct Option: C
Explanation:

Introgression involves the transfer of genetic material from a wild relative into a crop plant through conventional breeding or genetic engineering techniques.

Which genetic engineering technique involves the insertion of a gene that confers resistance to a specific pest or disease?

  1. Transgenesis

  2. Cisgenesis

  3. Gene Editing

  4. Mutagenesis


Correct Option: A
Explanation:

Transgenesis can be used to introduce genes that confer resistance to specific pests or diseases, such as genes encoding insecticidal proteins or disease-resistance genes.

What is the term used to describe the process of introducing a gene from a closely related species into a crop plant?

  1. Transgenesis

  2. Cisgenesis

  3. Introgression

  4. Gene Editing


Correct Option: B
Explanation:

Cisgenesis involves the transfer of a gene from a closely related species into a crop plant, ensuring that the introduced gene is similar to genes already present in the crop plant's genome.

Which genetic engineering technique involves the modification of a gene to reduce its expression?

  1. Gene Silencing

  2. Gene Editing

  3. Gene Amplification

  4. Gene Replacement


Correct Option: A
Explanation:

Gene silencing techniques, such as RNA interference (RNAi), can be used to reduce the expression of specific genes by targeting and degrading their mRNA transcripts.

What is the term used to describe the process of replacing a defective gene with a functional copy?

  1. Transgenesis

  2. Cisgenesis

  3. Gene Editing

  4. Gene Replacement


Correct Option: D
Explanation:

Gene replacement involves the removal of a defective gene and its replacement with a functional copy, restoring the normal function of the gene.

Which genetic engineering technique involves the random alteration of the genome through the use of chemicals or radiation?

  1. Transgenesis

  2. Cisgenesis

  3. Gene Editing

  4. Mutagenesis


Correct Option: D
Explanation:

Mutagenesis involves the induction of random mutations in the genome, which can lead to the generation of new genetic variants with potentially beneficial traits.

What is the term used to describe the process of introducing a gene from a different species into a crop plant?

  1. Transgenesis

  2. Cisgenesis

  3. Introgression

  4. Gene Editing


Correct Option: A
Explanation:

Transgenesis involves the transfer of a gene from a different species into a crop plant, allowing for the introduction of novel traits or the enhancement of existing traits.

Which genetic engineering technique involves the insertion of a gene that enhances the nutritional value of a crop plant?

  1. Transgenesis

  2. Cisgenesis

  3. Gene Editing

  4. Mutagenesis


Correct Option: A
Explanation:

Transgenesis can be used to introduce genes that encode for essential nutrients, such as vitamins or amino acids, enhancing the nutritional value of crop plants.

What is the term used to describe the process of introducing a gene that confers tolerance to a specific environmental stress?

  1. Transgenesis

  2. Cisgenesis

  3. Gene Editing

  4. Mutagenesis


Correct Option: A
Explanation:

Transgenesis can be used to introduce genes that confer tolerance to specific environmental stresses, such as drought, salinity, or extreme temperatures.

Which genetic engineering technique involves the use of molecular markers to select plants with desirable traits?

  1. Transgenesis

  2. Cisgenesis

  3. Gene Editing

  4. Marker-Assisted Selection


Correct Option: D
Explanation:

Marker-assisted selection involves the use of molecular markers linked to desirable traits to select plants that possess those traits, accelerating the breeding process.

- Hide questions