Write the decarboxylation process for: a) serine, b) histidine, c) tryptophan.

the difference in primary structure between related tropomyosin informs arises from a) alternative splicing b) C-to-U editing  c) farnesylation d) H3K4 methylation e) targetting to secretory vesicles

2. Peter is diabetic. So the molecular biologist cloned a DNA sequence in Peter's body cells that will synthesize insulin hormone. 5' AGCTAGACGCATCCTAATG-GCC-ACT-GAA-TCC-TGAATGGACGA 3' a) What will be the RNA of this insulin gene Sequence? b) How many amino acids will be translated from this mRNA? c) Give the amino-acid sequence of insulin.

Cyclic-AMP stimulates which of the following? a) PKA b) PKC c) Ras d) RTK

Which step is catalyzed by the enzyme responsible for the Met 2 mutant? (picture attached) A) homoserine → cysteine B) cysteine → cystathionine C) cystathionine → homocysteine D) homocysteine → methionine E) methionine → homoserine

A mutation of Lysine 82 (in the DPG-binding pocket) to Arginine in beta sub-unit will most likely result in  a) Not enough information b) Normal binding to oxygen c) Higher than normal binding affinity to oxygen d) Lower than normal binding affinity to oxygen

Regarding the cultivation of animal cells in vitro, it is correct to state that: *(Only one statement is correct) a) Transformed cells differ from normal and established cells in that they have the ability to proliferate indefinitely in culture b) Transformed cells derive from isolated and dissected tumors, constituting cell lines that have limited cultivation time c) The genetic instability presented in normal cells makes them preferential models for the production of recombinant proteins d) Cells cultured in adhesion must be periodically expanded, through the use of enzymes such as trypsin e) The metabolism of carbon sources in the culture medium by animal cells generates products such as lactate, which positively influence their productivity

Consider two different proteins that are leaving from the Golgi in order to arrive in their common destination, a lysosome. In order for these two different proteins to be sent to the same place, what should they have in common? A) They must have the same primary structure B) They must have been imported into the cell by endocytosis. C) They must have the same tertiary structure D) They probably have the same glycosylation pattern. ..

sugar and phosphate in a polynucleotide backbone are covalently linked by what? a) N-glucosidic bond  b) phosphodiester bond  c) peptide bond  d) beta strand e) alpha helix

please do it fast