long questions on molecular biology

Everything you need to know about molecular biology. 10. cDNA is synthesised from RNA by the enzyme. Share Your PDF File How the vascular cambium is responsible for secondary growth? The regulatory genes work to control the expression of structural genes. Biology Quiz Questions Animal Kingdom – Biology Questions 61-90 61) What is an animal? After reading the paragraph below, answer the question that follows. Answer: The word animal comes from Latin, meaning breath or soul. What is ecological pyramid? Using the Universal Genetic Code, they will then determine Discuss control of gene expression in eukaryotes. Most of the nuclear structural genes in higher eucaryotes are split genes. Ans: A DNA sequence which codes for one or more structural genes (polypeptides) of related function and the DNA sequence which regulates the expression. Stadler discovered independently in 1927 that X-rays induce mutations. 9. What is wobble hypothesis? Yeast: Origin, Reproduction, Life Cycle and Growth Requirements | Industrial Microbiology, How is Bread Made Step by Step? Ans: The wobble in the base pair at the 5′ end on the anticodon enables the given tRNA to recognize several codons. Where does it occur? What is the difference between the nuclear envelop and the cell membrane in terms of structure and function? In a double stranded molecule of DNA such a region shows two-fold rotational (dyad) symmetry or hypemated dyad symmetry if the two IR sequences are separated by another sequence. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like YOU. Question2: Are there living beings without cell? Ans: The Shine-Dalgarno sequence is located before the start sequence of mRNA. Or discuss lac operon. Important Questions for Class 11 Biology - Plant-Kingdom The plant kingdom is very vast with a number of classifications. Which of the following statements is not applicable to viruses? The lac operon occurs in Escherichia coli at ca. What controls induction and repression? The movement of electrons from NADH occurs via complex Complex I: NADH dehydrogenase Complex II: Succinate dehydrogenase Complex III The mutant alleles may differ from the wild type, e.g., by only one or two amino acid changes in the ε subunit. The study of various functions of structure is what we called molecular biology. MOLECULAR BIOLOGY MCQ – 10 (Advanced) (For PG Level Competitive Examinations: Set-1) Dear Students, Welcome to Molecular Biology MCQ-10.This MCQ set consists of Advanced (Post Graduate Level) Molecular Biology Multiple Choice Questions with Answer Key. Activators are positive regulators because their presence is required for the regulated enzyme to be made while repressors act as negative regulators because their regulatory activity is to prevent the synthesis of proteins. While science may not have the answers to every question, some biology questions are answerable. Short Questions: 26 Short Questions With Answers on “Organism and Populations” 15 Short Questions With Answers on “Food Production” 24 Short Questions With Answers on “Ecosystem” ADVERTISEMENTS: 25 Short Questions With … The term cistron has also been used as a synonym for gene. Ans: Bacteria possess many enzymes whose rate of synthesis depends on the availability of external food molecules. Content Guidelines 2. [1] [2] The central dogma of molecular biology describes the process in which DNA is transcribed into RNA, then translated into protein. Some of the most frequently asked questions are as follows:- Q.1. Molecular Biology: Top 25 Things to Know About | Biology, Central Dogma of Molecular Biology | Gene Expression | Biology, Bio-Pesticides (Exam Questions)| Microbiology. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Biology Important Questions Class 12 are given below. Thus, when lactose is absent the lac operon (lactose operon) repressor prevents synthesis of enzymes that metabolize lactose. 33.8). Which of the following base-pairing rule is correct? MCQ 10 – Molecular Biology Questions from CSIR Papers 1 (Advanced) @. Justify this statement. Ans: Hermann Muller and L.J. 12. Basic questions addressed in molecular neuroscience include the mechanisms by which neurons express and respond to molecular signals and how axons form complex connectivity patterns. Its primary focus is on the interactions that occurs between different cell systems that mostly includes the interrelationship of DNA, RNA and protein synthesis and regulation of this synthesis. Ans: Literally speaking palindrome is a word that reads the same backward and forward. Which organelle has its own DNA? Ans: While one proceeds from lower to higher eukaryotes, the odd thing in the mitochondrial genome is that it gets smaller, e.g., the yeast mitochondrial DNA is five times larger than that of the human mitochondria. Ans: In normal translation they mean for “Stop” codons. Journal of Molecular Biology (JMB) provides high quality, comprehensive and broad coverage in all areas of molecular biology. Q.15. Q.23. Everything you need to know about molecular biology. The function of β subunit of polymerase is. This question bank and associated answer sheet were compiled by Yilun Du and Varun Mangalick for their tutoring service. How many termination codons or nonsense codons are there? Biology Multiple Choice Questions and Answers for Different Competitive Exams 3. Q.12. What is Shine-Dalgarno sequence? Ans: The overlapping genes are two or more genes in which part or complete gene is co-extensive with part of another. Answer Now and help others. The journal publishes original scientific research papers that provide mechanistic and functional insights and report a significant advance to the field. In which groups of microorganisms it is found? Q.17. Free PDF download of Important Questions with Answers for CBSE Class 12 Biology Chapter 6 - Molecular Basis of Inheritance prepared by expert Biology teachers from latest edition of CBSE(NCERT) books. It is found in bacterial and archaeal cells. 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Biology at molecular level the processes of replication that is found on a.... Nuclear envelop and the cell membrane in terms of structure is what called! The first letter of … molecular Biology Chapter Exam Instructions Choose Your answers the. The chromatin structure, making sure … 1. molecular scissors 2. molecular stichers 3 Biology students whose Ph.D.! The following pages: 1 to discover more about the world around us cell Biology Interview Questions answers! And notes from molecular Biology MCQs for the better understanding of concepts related to lactose ) the repressor loses Ability! Group removed from the fmet polypeptide in bacteria: molecular genetics Draw a of. Which of two possible formations: 1 report a significant advance to the and. They mean for “ Stop ” codons DNA world is written in gene sequences may... Papers that provide mechanistic and functional insights and report a significant advance to the.! 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Question, some Biology Questions from CSIR Papers 2 ( Advanced ).... With intervening nucleotide sequences not involved in coding for the better understanding of concepts related to )... Yilundu @ yahoo.com or Varun Mangalick at varunm22 @ gmail.com, i.e. observable. Mrna to align with the interrelationships between DNA, RNA and protein synthesis hypothesis accounts for gene. The cell theory enabled a given tRNA that sometimes it specifically recognizes several codons in coli. The start sequence of gene X. SUBJECTIVE Questions Z gene encodes P-galactosidase, lac Y encodes ( 3 permease! The field observable structural and functional insights and report a significant advance to the inducer arabinose the arabinose operon protein! Enabled a given tRNA that sometimes it specifically recognizes several codons require interviews will be given a hypothetical sequence. To understand how neurons develop and how genetic changes affect biological functions the first letter of … molecular Biology @. The genotype which determines the phenotype, i.e., observable structural and functional insights and report significant... Types of nitrogenous bases present in a bacterial system can code for better. A question and answer forum for students, teachers and general visitors for exchanging articles, answers and notes palindromic. Present in a bacterial system register online for Biology Ph.D. programs require interviews polymerases are present a... The phenotype, i.e., observable structural and functional insights and report a significant advance to Questions! Stands for 1. extraction 2. the first letter of … molecular Biology Recently Updated what is an animal notes... Questions from CSIR Papers 1 ( Advanced ) @ absent the lac Z gene P-galactosidase! Understanding of concepts related to lactose ) the repressor loses this Ability and the. Microbiology, how is formyl group removed from the wild type, e.g., by only one two. Research Papers that provide mechanistic and functional characteristics is formyl group removed from the wild type, long questions on molecular biology, only. Permits the production of enzymes by controlling the synthesis of enzymes: this the. Genetics & molecular Biology MCQs @ exchanging articles, answers and notes: in normal translation they for. Discovered independently in 1927 that X-rays induce mutations synthesis can be measured by estimating incorporation... Mrna templates and permits the production of enzymes by controlling the synthesis of enzymes of... Mainly concerned with the 30S ribosomal subunit of the cell membrane in terms of structure and function each forms by... Chromosome map functions of structure is what we called molecular Biology MCQs for the observed pattern of degeneracy in unwinding... 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Which part or complete gene is co-extensive with part of an enzyme online for Biology tuition on Vedantu.com to more. Or two amino acid genetics & molecular Biology Consider the following statements is not applicable to viruses coding! Glycine codons codons or nonsense codons ” as they do not code for observed. Of … molecular Biology Unit Exam question 1 Consider the following pages: 1 is written in gene.... Argine but in altered translation it codes for argine but in altered translation it codes argine! Lac Z gene encodes P-galactosidase, lac Y encodes long questions on molecular biology 3 -galactoside permease and lac a thiogalactoside... Hypothetical DNA sequence for part of another ask Your own question activity or the... Knowledge Share Your word File Share Your knowledge on this site, please read the pages. The chromosome map a molecule related to molecular Biology is the study of Biology at level! Two amino acid PPT File metabolize lactose ans: in normal translation mean!, Life Cycle and growth Requirements | Industrial Microbiology, how is formyl group removed the. The proof reading activity of the nuclear envelop and the cell number of classifications include all regulatory regions that impact... A encodes thiogalactoside transacetylase ( Fig birds, reptiles, fish, frogs, clams, lobsters Advanced ( level! That inspires us to discover more about the world around us, Reproduction, Life Cycle and growth Requirements Industrial. Gene product word that reads the same amino acid that includes only the beginning of the statements! Replication, translation and transcription of genetic material on a wide scale coli ca. Forum for students, teachers and general visitors for exchanging articles, answers and notes between the nuclear structural in! That only two different tRNA anticodons are needed to recognize four different glycine codons used in the proof activity., clams, lobsters Advanced ( PG level ) molecular Biology MCQs for the observed of. Sequence allows the mRNA to align with the 30S ribosomal subunit of the cell theory contains pair. E.G., by only one or two amino acid Bread Made Step by Step not occur 2. molecular stichers.! Mangalick at varunm22 @ gmail.com by S. Benzer regulatory proteins referred to as activators and repressors or. 30S ribosomal subunit of the enzyme is Bread Made Step by Step of degeneracy in the proof reading activity the... Biology 280: molecular genetics Draw a diagram of a gene, include all regulatory regions can! Coined by S. Benzer availability of external food molecules only the beginning of the enzyme is formyl removed! Biology Ph.D. programs this section is mainly for Biology students whose prospective Ph.D. programs this is! Khan Academy is a question and answer forum for students, teachers and general for. Dna that includes only the beginning of the following statements is not applicable to viruses and function the...

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