phycical change
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Explanation:
DNA can be extracted by grinding the tissue in dry ice or liquid nitrogen with the mortar and pestel or a food grinder. the cell membrane must be disrupted,so that the DNA is released into extraction buffer.
Answer:
Gametes cells are reproductive cells.
Explanation:
Gametes cells, ovum in female and sperm in male are single cell
... Help in reproduction by fussing together produce zygote which change into embroy and then a baby.