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Actin filaments are thicker than myosin filaments. True or false?
Which one of the combinations of the following statements is true about antibody structure?
P. Limited proteolysis of rabbit IgG with the enzyme pepsin generates two antigen-binding regions (Fab) and an Fc fragment.
Q. Limited proteolysis of rabbit IgG with the enzyme papain generates a single bivalent antigen-binding region F(ab')2 and peptide fragments.
R. The Fc fragment of IgG can self-associate and crystallize into a lattice.
S. The F(ab')2 fragment of IgG is composed of both light and heavy chains.
Order the following events observed during muscle contraction in the correct sequence
1. The sarcomere shortens
2. ATP is hydrolyzed
3. Ca2+ binds to troponin
4. ATP binds to myosin
5. Mosin contracts F-actin
6. F-actin moves
7. Tropomyosin moves
8. Ca2+ is released from the sarcoplasmic reticulum
The identification of actin filaments in a cell can be done by using the protein ____________
Which of the following nucleating protein generates unbranched actin filaments?
After incorporation into growing actin filaments, the associated ATP is _____________
Which of the followings statements is/are correct?
1. Yarn used for weaving or knitting may either be in the form of continuous filaments or in the firm of staple-short fibres.
2. Filaments are smoother and more regular and lustrous than the twisted yarns.
3. The properties of the yarn may add or impair the quality of the fabric.
Select the correct answer
The contractile unit consisting of bundles of thick filaments interleaved at either end with those of thin filaments is?
The basket like structure of filaments in NPC has _________ filaments and is located in ____________ side of the nuclear membrane.
Consider the C program fragment below which is meant to divide x by y using repeated subtraction. The variables x, y, q and r are all unsigned int. While (r >= y) { r = r – y; q = q + 1; } Which of the following conditions on the variables x, y, q and r before the execution of the fragment will ensure that the loop terminates in a state satisfying the condition x == (y*q + r)?