Frameshift mutation - Study guides, Class notes & Summaries

A point mutation that changes a codon specifying an amino acid into a stop codon is called a frameshift mutation. nonsense mutation. missense mutation. deletion mutation. - nonsense mutation The triplet code of CAT in DNA is represented as ______ in mRNA and ______ in tRNA, respectively. Correct! CAU, GUA CAU, GTA CAT, CAT CAT, GAA - CAU, GUA What is the relationship among genes, DNA, and proteins? Proteins are the nitrogenous bases that form double strands of DNA in its helical sh...

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...

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...

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...

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...

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...

Complementary DNA and/or RNA molecules pair with each other by hydrogen bonding during replication, transcription, or translation. Which of the following pairs of molecules are complementary? (Select all that apply) tRNA and mRNA mRNA and template DNA During DNA replication the parent strands ______ and DNA polymerase______. separate, creates the new DNA strands The following sequence is one strand of the DNA that makes up the SNCA gene that codes for alpha-synuclein, a protein found i...

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 ...

Which of the following activities does the ribosome perform? A B. Polymerization of dNTPs C. Addition of the correct amino acid to the 3'OH of tRNA D. Removal of incorrect amino acids E. C and d are correct - ️️A. Establishment of the reading frame and formation of peptide bonds A missense mutation is: A. When the two bases of the double helix don't match B. When the sequence of a codon is changed, but its meaning is not C. A mutation that changes the amino acid encoded D....

Choose the correct coding strand (non-template) from this template (non-coding) DNA: 5' ATC GAT 3' 3' TAG CTA 5' If one strand of chromosome 2 has a DNA sequence that consists of this: 5' AGA CTA ATT GCC 3', what will be the composition of the complementary DNA strand? (Select all that apply) 3' TCT GAT TAA CGG 5' 5' GGC AAT TAG TCT 3' The following sequence is the coding strand of the collagen gene: 5' GGC AAA TAT CGA 3' What is the sequence of the corresponding mRN...