In translational elongation, the growing peptide chain is transferred from the__
ID: 78317 • Letter: I
Question
In translational elongation, the growing peptide chain is transferred from the____the ribosome to the____ site as a new peptide bond is formed. a) A;P b) P;A c) A;E d) E;P The sequence above contains a gene. When the mRNA from this gene is translate what will be the first three amino acids? a) Met-Ser-Asp b) Ser-Asp-Glu c) Ile-Arg-lys d) Met-Ser-His Misfolding of proteins is a serious problem in cells. Which of the following disease associated with an accumulation of misfolded proteins? a) Alzheimer's only b) Parkinson's only c) diabetes mellitus only d) Alzheimer's and Parkinson's Which gel to the right corresponds to the situation where there is a nonsense mutation in the gene in the Mut Cell? a) Gel A b) Gel B c) Gel C d) Gel D Which of the following is NOT a stage in cell signaling? a) Reception b) Transduction c) Response d) Termination What is the final result of mitosis in humans? a) genetically identical 2n somatic cells b) genetically different 2n somatic cells c) genetically identical 1n somatic cells d) genetically identical 2n gamete cellsExplanation / Answer
45. C.A, E.
In elongation process, the peptide bond is formed between amino acid at the P site and newly arrived amino acid at A site. When the peptide bond is formed , peptide chain moves to E site.
46.C. Ile-Arg-Lys
47. D. Alzehmeirs and Parkinsons .
Neurodegenerative disorders such as Alzheimer’s disease (AD), Parkinson’s disease (PD), Huntington’s disease (HD), amyotrophic lateral sclerosis (ALS) and prion protein diseases all share a common feature: the accumulation and aggregation of misfolded proteins.
49. Reception.
50. A. Genetically identical 2n cells.
Mitosis is the division of parent cell into two daughter cells each having same and equal number of chromosomes.
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