Answer:
The preferable options will be -
T-tubule system
Explanation:
- T-tubules or transverse tubules are a part of the skeletal and cardiac muscle membrane systems. They are the cell membrane extensions that can penetrate into the center of those muscles.
- It contains a large amount of on channels, transporters, and pumps. It allows the transmission of the action potential, frequently. T-tubules also regulates the cellular calcium concentration.
C. they are always heritable. b. they are inly heritable in gametes
Small tt because there are large TT on the top
Answer:
organelles such as nuclei, mitochondria or chloroplast
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