Question
Biology Question on Human body
The functional unit of contraction is a
A
Portion of myofibril between two successive Z-lines”
B
Portion of myofibril between two successive M-lines
C
Centre of the H-zone
D
Centre of the I-band
Answer
Portion of myofibril between two successive Z-lines”
Explanation
Solution
The correct answer is Option (A) : Portion of myofibril between two successive Z-lines”