Which of the following is the least likely biological consequence of protein oxidation?
a) Modification of gene transcription
b) Membrane lysis
c) Abnormal cellular uptake
d) Loss of enzyme activity
e) Protein aggregation
b. membrane lysis
Membrane lysis is the least likely biological consequence of protein oxidation. Protein oxidation can result in loss or gain of enzyme activity, protein aggregation, modification of gene transcription, and abnormal cellular uptake.
Which of the following is the least likely biological consequence of protein oxidation? a) Modification of...
Which of the following is the LEAST likely direct consequence of a substitution mutation? creating a non-functional version of a protein creating a new version of a protein creating a new amino acid in the universal genetic code creating a different codon in a gene creating a new allele of a gene
Which protein modification does NOT take place in the ER lumen? A. Polyubiquitylation B. N-linked glycosylation C. Cysteine bridge formation D. chaperone-mediated folding E. GPI anchoring 2. Which of these Eukaryotic proteins is least likely to exhibit an ER import sequence during translation? A. Glutathione B. CFTR C. Protein disulfide isomerase D. Acetylcholine receptor E. Na+-K+-ATPase 3. Which function is NOT attributed correctly to either smooth ER (SER) or rough ER (RER)?...
10) Would an amino acid with the given side chain be most likely found in the hydrophobic or hydrophilic region of a protein? -CH-CH3 он CH2-CH-CH3 он CH3 11) What process occurs when heat, acids, bases, and heavy metal ions cause loss of biological function of a protein? 12) Answer the following questions regarding enzyme activity: a) The optimum temperature and pH for most biological enzymes is b) The molecules to which an enzyme binds are called the c) The...
Which of the following would be the consequence if the promoter of a gene has been mutated so that it is no longer recognized by a sigma factor? A. Nothing, RNA polymerase is still able to bind. B. Capping of transcripts would be affected in those specific genes. C. Transcription of many genes regulated by the same sigma factor would be disrupted. D. RNA polymerase would require priming in order to transcribe new messages. E. Transcription of only that gene...
Question 20 TFIID is a. a protein and a transcription factor. b. an enzyme. c. a promoter and a transcription factor. d. a promoter. e. part of the TATA box. Question 19 Without maintenance methyltransferase, the changes made by DNA methyltransferase would not a. be able to increase transcription of a gene. b. be passed on from one generation to the next c. coordinate regulation across different genes. d. produce microRNA. e. be able to decrease transcription of a gene....
Which of the following is a way that protein function can be modified AFTER translation? Select one: a. gene duplication b. gene rearrangement c. protein cleavage d. exon shuffling e. transcription regulation
33) Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal? A) Sodium and glucose bind to the same site on the cotransporter. B) Transport of glucose against its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient. C) Sodium ions can be transported whether or not glucose is present outside the cell, but glucose transport requires cotransport of sodium ions. D)...
5. Which of the following would be the least likely to occur during glycolysis? a) Hydrolysis of ATP b) Synthesis of ATP c) Reduction of NAD+ d) Oxidation of NADH e) There are two that are equally likely
1. You are interested in how
cyclic-AMP-dependent protein kinase A (PKA) functions to affect
learning and memory, and you decide to study its function in the
brain. It is known that, in the cells you are studying, PKA works
via a signal transduction pathway like the one depicted in Figure
16-15. Furthermore, it is also known that activated PKA
phosphorylates the transcriptional regulator called Nerd that then
activates transcription of the gene Brainy. Which, if any
of the situations described...
18)which of the following would be considered a second
messenger ?
19)for a protein to be an integral membrane protein, it would
have to have a ___ region
20)phosphorylation cascades result in which of the
following
QUESTION 18 Which of the following would be considered a second messenger? Calcium B. CAMP CAcetylcholine D. A& B E. B, & C QUESTION 19 For a protein to be an integral membrane protein, it would have to have a region polar polar c...