MCQ
Sometimes chromosome number increase or decrease due to
- ✓Non-disjunction of chromosome
- BGenetic repete
- CMutation
- DAll of these
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| A. The template with polarity 3'$\rightarrow$5' | Continous replication |
| B. The template with polarity 5'$\rightarrow$3' | Discontinous replication |
| C. DNA replication | Energy expensive process |
| D. Okazaki fragment | Discontinous synthesis |
$(i)$ It is a contractile tissue present only in the heart.
$(ii)$ Cell junctions fuse the plasma membranes of these cells and make them stick together.
$(iii)$ Communication juntions at some fusion points allow the cells to contract as a unit, i.e., when one cell receives a signal to contract, its neighbours are also stimulated to contract.
Which of the following type of tissue is being described by the above statements?