Answer:
Option. A) 12
Explanation:
An organism with 24 chromosomes in each body cell will produce sex cells with 12 chromosomes. The chromosome number is half because meiosis occurs in sex cells in which parent cell is divided into four daughter cells having half number of chromosome i. e. haploid. So the parent cell has 24 chromosome when division occurs, the number of chromosome becomes half i. e. 12.
All cells change at different times and not at same time, mitosis is a multi step continuous process. The cycle keeps on repeating the process do not end.
Mitosis is a process by which a cell divides in an identical daughter cells, During the process one cell divides and produce two identical cells. Mitosis is for growth and replacement of dead cells, Mistakes in mitosis can result in changes in the DNA and can lead into genetic disorders.
Answer: B. dissection
Autopsy or postmortem is a medical examination of human body that is performed to know the cause, manner and duration since death. The autopsy involves complete examination of the body. The external examination gives indication of situation of the body : number of injury, color changes due to the affect of poisons. Internal examination gives indication of condition of organ in the body of deceased. For a complete internal examination dissection is required. Autopsy is complete when all four cavities like cranial, thoracic, abdominal and pelvic are open through dissection, which allows the assessment of organs present in these cavities. Opening of the intestinal cavity will give a way to assess the intestine, which can be dissected to know the contents present in it.