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Consider the following statements regarding muscle tissue: 1. Skeletal muscle tissue is closely attached to skeletal bones. 2. The smooth muscle fibres taper at both ends (fusiform) and do not show striations Which of the statements given above is/are correct?
One major difference between the action potential of cardiac muscle fibers and the action potential of skeletal muscle fibers is that in cardiac muscle fibers
Regarding the Indian economy, which of the following reflect, unprecedented suspension of economic activity in the first quarter of this fiscal (April - June) due to the Covid pandemic (a) Contraction of around 50.3% in the construction sector (b) Contraction of around 39.3% in the manufacturing sector (c) Contraction of around 10% in the Agri, forestry and fishing sector (d) Contraction of around 5% in the Trade, hotels, transport sector
Consider the following statements about the sliding filament theory of muscle contraction: a. This theory explains the modern concept of muscle contraction. b. This theory was put forward by Huxley and Niedergerke. Which of the above statements is/are true?
According to “Sliding filament model of muscle contraction”, shortening of sacromeres results from sliding of the filaments.
Consider the following statements regarding the pachytene substage of prophase I during meiosis and choose the correct answer:
1. Pachytene is said to begin when synapsis is completed
2. During pachytene the chromosomes are associated in bivalents or tetrads
3. Shortening and thickening of the chromosomes takes place due to longitudinal contraction
4. Exchange of groups of genes takes place as a result of crossing over
Skeletal muscle contraction
The contraction of the skeletal muscles results in the generation of action potential in the individual muscle fibers. Record of this action potential is called ______________
In voluntary contraction of the skeletal muscles, the muscle potential ranges from ________
In skeletal muscle, calcium facilitate contraction by binding to: