You have to put a lid on petri dishes in order to ensure that no outside contaminants get inside the dish.
Answer:
Gap junctions
Explanation:
They allow adjacent cells to communicate. These channels form a close connection between cytoplasm because small molecules such as ions are able to pass through from cell to cell. Examples of cells with gap junctions are cells in heart muscle tissues. Gap junctions are found in animal cells and are akin to plasmodesmata in plant.
D, all of the above. hope it helps ^-^/
Answer:
DNA replication does not occur prior to the second cell division during meiosis.
Explanation:
The mitosis and meiosis are the types of cell division which differ in the production of a number of daughter cell that is mitosis produces two daughter cells and the meiosis results in four daughter cells.
The mitosis results in the two diploid cells as DNA replication doubles the amount of DNA which got equally distributed in the cells.
During meiosis which proceeds in two phases: meiosis I and II, the DNA replication take place before meiosis which doubles the amount of DNA and the double amount in two daughter cells but no replication takes place before meiosis II, therefore, the amount is distributed from the divided genes.
Thus, the selected option is the correct answer.