Mirna - Study guides, Revision notes & Summaries

CRISPR Based Genome Engineering Exam Questions With Verified Answers. What is CRISPR - answerThis is a technology that research scientists use to selectivelt modify the DNA of a living organism. CRISPR was adapted for use in the lab from natually occurnig genome editing systems which are found in bacteria. This technology allows for precise modifications to the genetic code, offering the potential to treat various medical conditions by editing genes responsible for certain diseases What i...

Which of the following statements concerning translational repression from miRNAs are false? miRNA complexes can cause ribosomes to fall off mRNA prematurely. The removal of the polyA tail by miRNA complexes causes the mRNA to be digested by RiSC. The RiSC complex, when directed my miRNAs, can cause mRNA to become circular in structure which inhibits translation. miRNA directed RiSC complexes can bind to ribosomal subunits preventing the assembly of a functional ribosome (with large and ...

The term phenotype can be applied to a wide range of manifestations. Which of the following properties, if any, do not constitute a phenotypic manifestation? a. The number of digits a person has. b. The transcriptome of a single T cell. c. The sequence of a persons beta globin gene. d. autistic behavior - correct answer c. The sequence of a persons beta globin gene. Which, if any, of the following is incorrect? When used in human genetics, ...

BIO 1A03 TEST 2 QUESTIONS AND ANSWERS ALREADY PASSED The lacZand lacY genes are transcribed when a) lactose is absent and glucose levels are high. b)lactose is present and glucose levels are low. c)lactose is present, regardless of the level of glucose in the cell. d) glucose levels are low, regardless of the level of lactose in the cell. b) The CRP-cAMP complex binds the lactose operon when a) glucose levels and cAMP levels are low. b) glucose levels are high and cAMP levels are low. c)...

BIO 111 FINAL EXAM QUESTIONS AND ANSWERS LATEST 2024/2025 (100% CORRECT) What is the first mRNA processing step? - ANSWER 5' capping Different mRNAs are made from the same initial pre-mRNA by ________. - ANSWER alternative splicing RNA transcription begins at a ________. - ANSWER promoter ________ protect(s) the pre-mRNA molecule. - ANSWER the 3' poly-a tail The process of pre-mRNA splicing removes ________. - ANSWER introns Spliced ________ differ in their exons. - ANSWER mRNAs Identif...

Question 1 Which of the following is one of the primary functions of carbohydrates? Possible Answers: Protect cell organelles Energy storage Catalyze chemical reactions Maintain genetic fidelity Correct answer: Energy storage Question 2 Which of the following is a carbohydrate? Possible Answers: Lipase Cholesterol miRNA Mannose Correct answer: EXAM Mannose Question 3 Beta amylase is an enzyme that breaks down polysaccharides into component monosaccharides, but is not produced by humans. Beta...

MMSC 490 Final Test Questions with Correct Answers Which energy-producing process is thought to have come first during cellular evolution? - Answer-Glycolysis The initial importance of a membrane enclosing self-replicating RNA molecules and associated proteins was that it - Answer-maintained these molecules as a unit capable of reproduction and evolution. Mitochondria and chloroplasts resemble bacteria in that they - Answer-have their own DNA, have their own ribosomes, reproduce by si...

Nucleic Acid grows by attachment of 5' phosphate group of the incoming nucleotide to the 3'hydroxyl group of the last nucleotide double stranded DNA most energetically favorable state for DNA Purines double-ring structure Adenine (A) + Guanine (G) Pyrimidine single-ring structure Uracil (U)+ Cytosine Messenger RNA (mRNA) -template for all protein synthesis -encode all information necessary to produce proteins Heterogeneous nuclear RNA primary product o...

Nucleic Acid grows by attachment of 5' phosphate group of the incoming nucleotide to the 3'hydroxyl group of the last nucleotide double stranded DNA most energetically favorable state for DNA Purines double-ring structure Adenine (A) + Guanine (G) Pyrimidine single-ring structure Uracil (U)+ Cytosine Messenger RNA (mRNA) -template for all protein synthesis -encode all information necessary to produce proteins Heterogeneous nuclear RNA primary product o...

AAB Molecular Diagnostics- Final Exam [100% PASS] /verified/ Nucleic Acid *Ans* grows by attachment of 5' phosphate group of the incoming nucleotide to the 3'hydroxyl group of the last nucleotide double stranded DNA *Ans* most energetically favorable state for DNA Purines *Ans* double-ring structure Adenine (A) + Guanine (G) Pyrimidine *Ans* single-ring structure Uracil (U)+ Cytosine Messenger RNA (mRNA) *Ans* -template for all protein synthesis -encode all information necessary to p...