Applied Plant Genetics MCQ's Q & A PDF

What process involves determining the differences in the genetic makeup of an organism? A. Genotyping B. Genomic selection C. DNA sequencing D. Selective breeding ANSWER: A What is the primary focus of agricultural biotechnology? A. Improving animal production B. Enhancing crop resistance th...

What process involves determining the differences in the genetic makeup of an organism? A. Genotyping B. Genomic selection C. DNA sequencing D. Selective breeding ANSWER: A What is the primary focus of agricultural biotechnology? A. Improving animal production B. Enhancing crop resistance through traditional breeding C. Bringing genetic improvements in agriculture through biotechnology D. Developing organic farming practices ANSWER: C Which of the following accurately describes genetic engineering? A. Observation of plant traits over generations B. Artificial alteration of a gene C. Natural selection of crops D. Crossbreeding of different species ANSWER: B What is a concern related to the use of herbicide-resistant crops? A. They guarantee pest resistance. B. They might transfer traits to wild weed populations. C. They improve crop yield dramatically. D. They enhance soil quality directly. ANSWER: B What is a key benefit of pest resistance in crop management? A. It completely eliminates the need for any chemical applications. B. It focuses solely on maximizing crop yield without regard to ecological impact. C. It reduces the damage to plants and enhances biodiversity. D. It leads to an increase in chemical pollutants in the environment. ANSWER: C Which of the following is a known advantage of genetically modified organisms (GMO)? A. Need for intensive tillage practices. B. Enhanced resistance to specific diseases. C. Greater chances of crop failure. D. Increased use of pesticides for disease control. ANSWER: B Which statement best describes gene editing? A. It involves inserting genetic material from unrelated species only. B. It allows for the addition, removal, or alteration of an organism\'s DNA. C. It is a method that cannot affect the final phenotype of the organism. D. It is exclusively aimed at producing livestock rather than crops. ANSWER: B What does genomics study primarily involve? A. The environmental impact of agriculture B. The historical methods of crop breeding C. The structure and function of an organism\'s genome D. The interaction between crops and pests ANSWER: C How does CRISPR/Cas9 function in genome editing? A. It randomly inserts new genes from different species into the genome. B. It solely relies on the use of chemical agents without any enzymatic action. C. It targets specific genes and employs a scissors-like mechanism to alter DNA. D. It requires a lengthy process with no control over the gene being modified. ANSWER: C What role does micropropagation play in genetic engineering? A. It serves as a method to increase soil fertility artificially. B. It is used solely for animal tissue culture. C. It allows for the production of plants in a sterile environment from plant tissues. D. It focuses exclusively on enhancing herbicide resistance in crops. ANSWER: C Which of the following statements about selective breeding is false? A. It is a traditional method of improving crops. B. It may take multiple generations to acquire desired traits. C. It guarantees specific genetic outcomes. D. It relies on natural genetic variation. ANSWER: C Which aspect of biotechnology raises ethical considerations regarding biodiversity? A. The development of crops that require greater chemical treatments. B. The genetic alteration of species to produce faster growth rates. C. The promotion of monoculture farming practices. D. The production of pest-resistant crops that reduce chemical pesticide use. ANSWER: D What is a major economic benefit of gene editing in agriculture? A. It leads to higher expenses in crop management. B. It allows production of higher yields to meet food demand. C. It creates crops that are less adaptable to climate changes. D. It decreases the profitability of traditional farming methods. ANSWER: B What advantage does herbicide resistance provide to crop production? A. It ensures that spraying for weeds does not harm the crops. B. It reduces competition between crops and insects. C. It relies on physical barriers to protect crops from weeds. D. It prevents any form of weed growth in the field. ANSWER: A What is the primary function of the enzyme Cas9 in the CRISPR process? A. To synthesize RNA molecules for genetic modification. B. To act as molecular scissors that cut DNA at specific locations. C. To enhance the stability of the plant tissue during growth. D. To facilitate the insertion of new genes from other species. ANSWER: B What is the primary goal of genetic engineering in organisms? A. To select the strongest individuals for reproduction. B. To create organisms that resemble their ancestors. C. To eliminate all genetic variations in a species. D. To artificially manipulate genes for specific benefits. ANSWER: D What term is used to describe an organism whose genes have been altered? A. Genetically Modified Organism (GMO) B. Genetic Hybrid C. Selective Breeder D. Transgenic Organism ANSWER: A Which method involves comparing the offspring of a plant under the same conditions to evaluate traits? A. Progeny Testing B. Genetic Mapping C. Natural Selection D. Phenotypic Assessment ANSWER: A Who is credited with the development of the Theory of Natural Selection? A. Gregor Mendel B. Charles Darwin C. Albert Einstein D. Louis Pasteur ANSWER: B What is a fundamental principle of natural selection? A. All organisms reproduce at the same rate. B. Genetic variation is detrimental to species survival. C. Organisms with advantageous traits are more likely to reproduce. D. Only the most visually appealing organisms survive. ANSWER: C Which of the following best describes performance testing in plant breeding? A. Selecting plants based solely on historical performance. B. Comparing genetic sequences of different species. C. Evaluating the growth and yield of specific plants under standard conditions. D. Assessing the visual characteristics of the plant. ANSWER: C In the context of genetic improvement, what does natural selection primarily involve? A. Genetic engineering of organisms for rapid growth. B. Banking of genetic resources for future research. C. The natural differential survival and reproduction of organisms. D. Artificially enhancing desired traits. ANSWER: C What is the goal of progeny testing in genetic improvement? A. To clone genetically identical organisms. B. To measure genetic drift in populations. C. To eliminate undesirable traits completely. D. To find which offspring have the desired traits for pollination. ANSWER: D