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Q.In prokaryotes, where is the DNA organized?Prokaryotic DNA is arranged as a circular chromosome that is tightly coiled in the nucleoid region of the cells cytoplasm. Genes involved in the same biochemical pathway or required for a specific function are grouped together in operons. An example of this is the lactose (or lac) operon, where all the genes needed for lactose metabolism are located in close proximity.In prokaryotes, operon expression can be influenced by three types of regulatory molecules: repressors, activators, and inducers. Repressors are proteins that inhibit gene transcription in response to external stimuli, while activators are proteins that enhance gene transcription in response to external stimuli. Inducers, on the other hand, are small molecules that can either activate or inhibit gene transcription depending on the cells needs and the availability of substrates.In E. coli, the process of lactose digestion begins with the enzyme β-galactosidase breaking down lactose. The gene responsible for producing β-galactosidase, called lacZ, is part of an operon that is regulated in coordination with other genes involved in lactose utilization.a)Nucleusb)Nucleoid regionc)Mitochondriad)Golgi apparatuse)None of theseCorrect answer is option 'B'. Can you explain this answer? for MCAT 2025 is part of MCAT preparation. The Question and answers have been prepared according to the MCAT exam syllabus. Information about Q.In prokaryotes, where is the DNA organized?Prokaryotic DNA is arranged as a circular chromosome that is tightly coiled in the nucleoid region of the cells cytoplasm. Genes involved in the same biochemical pathway or required for a specific function are grouped together in operons. An example of this is the lactose (or lac) operon, where all the genes needed for lactose metabolism are located in close proximity.In prokaryotes, operon expression can be influenced by three types of regulatory molecules: repressors, activators, and inducers. Repressors are proteins that inhibit gene transcription in response to external stimuli, while activators are proteins that enhance gene transcription in response to external stimuli. Inducers, on the other hand, are small molecules that can either activate or inhibit gene transcription depending on the cells needs and the availability of substrates.In E. coli, the process of lactose digestion begins with the enzyme β-galactosidase breaking down lactose. The gene responsible for producing β-galactosidase, called lacZ, is part of an operon that is regulated in coordination with other genes involved in lactose utilization.a)Nucleusb)Nucleoid regionc)Mitochondriad)Golgi apparatuse)None of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for MCAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Q.In prokaryotes, where is the DNA organized?Prokaryotic DNA is arranged as a circular chromosome that is tightly coiled in the nucleoid region of the cells cytoplasm. Genes involved in the same biochemical pathway or required for a specific function are grouped together in operons. An example of this is the lactose (or lac) operon, where all the genes needed for lactose metabolism are located in close proximity.In prokaryotes, operon expression can be influenced by three types of regulatory molecules: repressors, activators, and inducers. Repressors are proteins that inhibit gene transcription in response to external stimuli, while activators are proteins that enhance gene transcription in response to external stimuli. Inducers, on the other hand, are small molecules that can either activate or inhibit gene transcription depending on the cells needs and the availability of substrates.In E. coli, the process of lactose digestion begins with the enzyme β-galactosidase breaking down lactose. The gene responsible for producing β-galactosidase, called lacZ, is part of an operon that is regulated in coordination with other genes involved in lactose utilization.a)Nucleusb)Nucleoid regionc)Mitochondriad)Golgi apparatuse)None of theseCorrect answer is option 'B'. Can you explain this answer?.

Solutions for Q.In prokaryotes, where is the DNA organized?Prokaryotic DNA is arranged as a circular chromosome that is tightly coiled in the nucleoid region of the cells cytoplasm. Genes involved in the same biochemical pathway or required for a specific function are grouped together in operons. An example of this is the lactose (or lac) operon, where all the genes needed for lactose metabolism are located in close proximity.In prokaryotes, operon expression can be influenced by three types of regulatory molecules: repressors, activators, and inducers. Repressors are proteins that inhibit gene transcription in response to external stimuli, while activators are proteins that enhance gene transcription in response to external stimuli. Inducers, on the other hand, are small molecules that can either activate or inhibit gene transcription depending on the cells needs and the availability of substrates.In E. coli, the process of lactose digestion begins with the enzyme β-galactosidase breaking down lactose. The gene responsible for producing β-galactosidase, called lacZ, is part of an operon that is regulated in coordination with other genes involved in lactose utilization.a)Nucleusb)Nucleoid regionc)Mitochondriad)Golgi apparatuse)None of theseCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for MCAT. Download more important topics, notes, lectures and mock test series for MCAT Exam by signing up for free.

Here you can find the meaning of Q.In prokaryotes, where is the DNA organized?Prokaryotic DNA is arranged as a circular chromosome that is tightly coiled in the nucleoid region of the cells cytoplasm. Genes involved in the same biochemical pathway or required for a specific function are grouped together in operons. An example of this is the lactose (or lac) operon, where all the genes needed for lactose metabolism are located in close proximity.In prokaryotes, operon expression can be influenced by three types of regulatory molecules: repressors, activators, and inducers. Repressors are proteins that inhibit gene transcription in response to external stimuli, while activators are proteins that enhance gene transcription in response to external stimuli. Inducers, on the other hand, are small molecules that can either activate or inhibit gene transcription depending on the cells needs and the availability of substrates.In E. coli, the process of lactose digestion begins with the enzyme β-galactosidase breaking down lactose. The gene responsible for producing β-galactosidase, called lacZ, is part of an operon that is regulated in coordination with other genes involved in lactose utilization.a)Nucleusb)Nucleoid regionc)Mitochondriad)Golgi apparatuse)None of theseCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Q.In prokaryotes, where is the DNA organized?Prokaryotic DNA is arranged as a circular chromosome that is tightly coiled in the nucleoid region of the cells cytoplasm. Genes involved in the same biochemical pathway or required for a specific function are grouped together in operons. An example of this is the lactose (or lac) operon, where all the genes needed for lactose metabolism are located in close proximity.In prokaryotes, operon expression can be influenced by three types of regulatory molecules: repressors, activators, and inducers. Repressors are proteins that inhibit gene transcription in response to external stimuli, while activators are proteins that enhance gene transcription in response to external stimuli. Inducers, on the other hand, are small molecules that can either activate or inhibit gene transcription depending on the cells needs and the availability of substrates.In E. coli, the process of lactose digestion begins with the enzyme β-galactosidase breaking down lactose. The gene responsible for producing β-galactosidase, called lacZ, is part of an operon that is regulated in coordination with other genes involved in lactose utilization.a)Nucleusb)Nucleoid regionc)Mitochondriad)Golgi apparatuse)None of theseCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Q.In prokaryotes, where is the DNA organized?Prokaryotic DNA is arranged as a circular chromosome that is tightly coiled in the nucleoid region of the cells cytoplasm. Genes involved in the same biochemical pathway or required for a specific function are grouped together in operons. An example of this is the lactose (or lac) operon, where all the genes needed for lactose metabolism are located in close proximity.In prokaryotes, operon expression can be influenced by three types of regulatory molecules: repressors, activators, and inducers. Repressors are proteins that inhibit gene transcription in response to external stimuli, while activators are proteins that enhance gene transcription in response to external stimuli. Inducers, on the other hand, are small molecules that can either activate or inhibit gene transcription depending on the cells needs and the availability of substrates.In E. coli, the process of lactose digestion begins with the enzyme β-galactosidase breaking down lactose. The gene responsible for producing β-galactosidase, called lacZ, is part of an operon that is regulated in coordination with other genes involved in lactose utilization.a)Nucleusb)Nucleoid regionc)Mitochondriad)Golgi apparatuse)None of theseCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Q.In prokaryotes, where is the DNA organized?Prokaryotic DNA is arranged as a circular chromosome that is tightly coiled in the nucleoid region of the cells cytoplasm. Genes involved in the same biochemical pathway or required for a specific function are grouped together in operons. An example of this is the lactose (or lac) operon, where all the genes needed for lactose metabolism are located in close proximity.In prokaryotes, operon expression can be influenced by three types of regulatory molecules: repressors, activators, and inducers. Repressors are proteins that inhibit gene transcription in response to external stimuli, while activators are proteins that enhance gene transcription in response to external stimuli. Inducers, on the other hand, are small molecules that can either activate or inhibit gene transcription depending on the cells needs and the availability of substrates.In E. coli, the process of lactose digestion begins with the enzyme β-galactosidase breaking down lactose. The gene responsible for producing β-galactosidase, called lacZ, is part of an operon that is regulated in coordination with other genes involved in lactose utilization.a)Nucleusb)Nucleoid regionc)Mitochondriad)Golgi apparatuse)None of theseCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Q.In prokaryotes, where is the DNA organized?Prokaryotic DNA is arranged as a circular chromosome that is tightly coiled in the nucleoid region of the cells cytoplasm. Genes involved in the same biochemical pathway or required for a specific function are grouped together in operons. An example of this is the lactose (or lac) operon, where all the genes needed for lactose metabolism are located in close proximity.In prokaryotes, operon expression can be influenced by three types of regulatory molecules: repressors, activators, and inducers. Repressors are proteins that inhibit gene transcription in response to external stimuli, while activators are proteins that enhance gene transcription in response to external stimuli. Inducers, on the other hand, are small molecules that can either activate or inhibit gene transcription depending on the cells needs and the availability of substrates.In E. coli, the process of lactose digestion begins with the enzyme β-galactosidase breaking down lactose. The gene responsible for producing β-galactosidase, called lacZ, is part of an operon that is regulated in coordination with other genes involved in lactose utilization.a)Nucleusb)Nucleoid regionc)Mitochondriad)Golgi apparatuse)None of theseCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice MCAT tests.