Recombinant DNA technology can be most accurately defined as the
use of microorganisms to produce useful products.
selective breeding of organisms to create new combinations of traits.
study of replication and recombination in microbes.
study of genetic expression in microbes.
deliberate modification of the genome of an organism for practical purposes.
The Correct Answer is E
A. Use of microorganisms to produce useful products: This describes biotechnology in general but not specifically recombinant DNA technology.
B. Selective breeding of organisms to create new combinations of traits: Selective breeding involves natural mating, not direct genetic modification.
C. Study of replication and recombination in microbes: This is part of microbial genetics, not recombinant DNA technology.
D. Study of genetic expression in microbes: This focuses on gene regulation, not the deliberate manipulation of DNA.
E. Deliberate modification of the genome of an organism for practical purposes: This defines recombinant DNA technology, which involves inserting, deleting, or altering genes to achieve specific outcomes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Are synthesized only when their substrate is available: Inducible enzymes are produced in response to the presence of a substrate or inducer (e.g., the lac operon enzymes are synthesized when lactose is present), conserving cellular resources until needed.
B. Are synthesized continuously by the cell: Constitutive enzymes are synthesized continuously regardless of substrate presence; this statement describes constitutive rather than inducible enzymes.
C. Are only found in prokaryotes: Inducible regulation of enzyme synthesis occurs in both prokaryotes and eukaryotes; it is not exclusive to prokaryotes.
D. Are coded by genes that are always expressed: Genes that are always expressed encode constitutive enzymes; inducible enzyme genes are typically regulated and expressed only under inducing conditions.
Correct Answer is D
Explanation
A. Element:
An element refers to a pure chemical substance such as carbon or nitrogen, not a complex organic molecule required for growth.
B. Macronutrient:
Macronutrients are required in large quantities but can often be synthesized or derived from other sources; the term does not imply inability to synthesize.
C. Compound:
This term is too broad and does not specify the nutrient’s essential nature or the organism’s inability to synthesize it.
D. Growth factor:
A growth factor is an organic compound, such as an amino acid, vitamin, or nucleotide base, that the organism must obtain externally because it cannot synthesize it.
E. Trace element:
Trace elements are inorganic minerals required in minute amounts for enzyme function, not organic nutrients that must be provided.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.