Nonsense mutation - Study guides, Class notes & Summaries

D correct answers A mutation that does not cause disease but that is unstable at mitosis and meiosis and can change into a pathogenic mutation A. a post-zygotic (somatic) mutation B. a missense mutation C. a dynamic mutation D. a premutation C correct answers A pathogenic mutation that is unstable at mitosis and meiosis and can result in progressively severe phenotypes A. a post-zygotic (somatic) mutation B. a missense mutation C. a dynamic mutation D. a premutation A correct a...

_____ mutations are important to the evolutionary process; most cancers result from _____ mutations. A) Somatic; germ-line B) Germ-line; somatic C) Germ-line; heritable D) Somatic; heritable E) Point; germ-line - Answer B) Germ-line; somatic Segregation of alleles corresponds to the separation of: A) genes. B) genotypes. C) chromosomes D) phenotypes. - Answer C) chromosomes When nonhomologous chromosomes exchange parts, a(n) _____ has occurred. A) reciprocal translocation ...

Methylases - Answer adds methyl group to restriction sites on cell's own DNA (blocks cleavage) Silent mutation - Answer No change in amino acid sequence Nonsense mutation - Answer Introduction of stop codon Missense mutation - Answer Amino acid change at position Dispersive replication - Answer fragments of original DNA molecules are used as templates Reciprocal translocation - Answer exchange of one part of a chromosome for another (problems in meiosis) Re...

what can restore a frameshift mutation? - another frameshift, microdeletion, and microinsertion A mutation in a particular gene that results in the premature halting of transcription (and, consequently, protein translation) is a___________ mutation. - nonsense Consider a mutation in which the change is from UAC to UAU. Both codons specify the amino acid tyrosine. Which type of point mutation is this? - Silent mutation A ʺpoint mutationʺ refers to mutations involving - a substitution, dele...

BCHM307 EXAM 2 QUESTIONS WITH COMPLETE SOLUTIONS ALL GRADED A+ If an mRNA sequence is GAA, what would be the tRNA anticodon, written 5'-3'? a. UUC b. CTT c. CUU d. TTG e. It is not possible to tell from the information given - Answer-a. UUC 1. Following is the sequence of the sense or coding strand of a particular gene. What is the amino acid sequence of the peptide encoded in this gene? Use the standard genetic code to aid you in finding an answer. 5'-GCTAGGCATGTACGCCGGTCA-3' a...

MCAT - Bio/Biochem Exam Practice Questions and Answers Graded A defunct mRNA translation in bacteria would... - Correct Answer ️️ -prevent cells from replicating. lysogenic cycle - Correct Answer ️️ -a viral reproductive cycle in which the viral DNA is added to the host cell's DNA and is copied along with the host cell's DNA Lytic phase or lytic cycle - Correct Answer ️️ -phage replicates immediately, destroying the host cell (All phages carry out this life cycle) protein p...

Bio 2024 final Mutation A change in DNA Point mutation Single base change on a chromosome Silent mutation Mutation not altering amino acid sequence Missense mutation Mutation changing a single amino acid Nonsense mutation Mutation changing a regular codon to a stop codon Frameshift mutation Addition or deletion causing sequence shift Insertion Adding a base in a sequence Deletion Removing a base from a sequence DNA to Phenotype stages DNA --> ...

BIO 100 EXAM 2 STUDY GUIDE LATEST UPDATE GRADED A+ What characteristic of DNA evidence makes it particularly valuable in criminal investigations? Its uniqueness to each individual organism. What ensures the stability of the complementary base pairs in a DNA molecule? Hydrogen bonds. Why did the double helix model of DNA generate excitement in the scientific community? It elucidated how genetic material could be duplicated through complementary strands. What are the alternative ...

The spectrum of p53 mutations is not a strong argument to infer neomorphic or antimorphic mutations Unlike most other tumour suppressor genes that are inactivated by frameshift or nonsense mutations leading to disappearance or aberrant synthesis of the gene product, almost 80% of p53 gene mutations are missense mutations leading to the synthesis of a stable protein, lacking its specific DNA-binding activity and accumulating in the nucleus of tumour cells (Soussi, 2005). Whether this hig...

Multiple sclerosis A chronic disease of the central nervous system marked by damage to the myelin sheath. Plaques occur in the brain and spinal cord causing tremor, weakness, incoordination, paresthesia, and disturbances in vision and speech What does dopamine do? influences movement, learning, attention, and emotion. Dopamine enables neurons in your brain to communicate and control movement. silent mutation A mutation that changes a single nucleotide, but does not change the amino a...