Frameshift mutation - Study guides, Class notes & Summaries

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...

CMMB 403 final exam Question and answers already passed CMMB 403 final exam what does CRISPR use in order to generate changes in genome? is CRISPR forward or reverse genetics? - correct answer - nuclease - 20 nucleotide RNA sequence to target specific sites in the genome - reverse genetics what is the role of Cas9 in CRISPR - correct answer endonuclease that catalyzes double stranded breaks what are the two repair paths cells can use to repair double stranded breaks from CRISPR-Ca...

A frameshift mutation could result from - the mutation is caused by an addition or deletion of one or more nucleotides. What type of RNA carries amino acids to the ribosome? - transfer RNA In sickle cell anemia, only one amino acid is changed in the hemoglobin protein. Predict what type of mutation has occurred in the hemoglobin gene using the mRNA codons below. Normal allele GGAAUGAAACAGGAACCC Mutant allele GGAAUGAAACAGGUACCC - substitution Frameshift mutations occur when one or more n...

DNA replication - correct answer untwisted and zipped by hydrogen bonds being broken between two pairs DNA polymerase - correct answer pairs new bases, aka complementary base pairing (ATCG) Chromosome aberrations occur where? - correct answer occurs among number or structure Explain base pair substitution - correct answer mutation where ATCG base pairing is mixed Missense mutation - correct answer A base-pair substitution that results in a codon that codes for a different a...

USLME - Biochemistry (General Questions) Exam Questions With Accurate Answers. Histones are rich in what AAs? - answerLysine and arginine (both + charge) When does histone synthesis occur? - answerS phase (along with DNA getting synthesized) Heterochromatin is _________, euchromatin is _________ - answerInactive/condensed; active/accessible What allows mismatch repair enzymes to distinguish between old and new DNA strands in prokaryotes? - answerMethylation; old/template strands are meth...

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...

Question 1 What is the result of a silent mutation? Possible Answers: There is no change to the peptide product Inclusion of a different amino acid A shift in the reading frame that results in a nearly completely different protein Early termination of translation Correct answer: There is no change to the peptide product Question 2 Which of the following describes abortive initiation? Possible Answers: The inability of the initiation complex to form Short cycles of RNA synthesis EXAM RNA poly...

Biology 1201 Exam 3 with Certified Solutions One gene-one enzyme hypothesis (figure 17.2) genes code for enzymes Flow of information from DNA to RNA to protein (figure 17.3 and 17.4) DNA --- [transcription]---> mRNA ---[translation]---> Poypeptide RNA structure versus DNA structure (figure 5.26) deoxyribose is replaced by the 5 carbon sugar, ribose in DNA, the pyrimidines are C and T in RNA, the pyrimidines are C and U; in RNA, U pairs with A Transcription, RNA polymeras...

MTM Exam 4 Diseases Latest Update with Verified Solutions DMD -loss of function, recessive, haplosufficiency -symptoms present < 5 yoa -progressive symmetrical muscular weakness -wheelchair dependent by 12-13 yoa -life expectancy = teens - 30s -do not reproduce -calf pseudohypertrophy -elevated serum creatine kinase -unable to perform neck flexion -complete absence of dystrophin -mutations: deletions, frameshift, nonsense -exon length is NOT a multiple of 3 -frameshifts -> null mutations ...

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 production Correct Answer: -proteins made at ribosomes -ribosomes on Rough ER make prote...