Answer:
Medical uses: The field of genetic engineering is making progress rapidly and it has helped doctor's to fight many challenging diseases. One of the medical use of genetic engineering is the production of insulin by genetic engineering and also the production of vaccines through this technique.
Agricultural uses: The field of biotechnology can change the life of farmers once it is fully known that the genetically engineered crops cannot harm the humans. One of the uses of genetic engineering in agriculture is the production of crops containing increased nutrition. For example,Golden rice which carries vitamin A in it.
Environmental uses: Genetic engineering is used to clean the Earth by producing genetically engineered microorganisms which can not only break down waste but also can degrade plastics.
Answer:
The study of oceans and their life.
Explanation:
The study of oceans, including seawater, the ocean floor, and marine plants and animals.
Answer:
b: 8;8
Explanation:
Mitotic or meiotic cell division constitute the m phase of the cell cycle. At the end of the m phase, the new cells enter the interphase stage of the cell cycle. The interphase is further sub-divided into;
- <em>the
phase,</em> - <em>the
phase,</em> - <em>the S phase; and</em>
- <em>the
phase</em>.
The
phase is essentially a resting phase. Cells that do not need to divide except when necessary move into this phase after exiting the m phase.
Actively dividing cells enter the
phase after exiting the m phase. Cell development and growth takes place. From there, the cells enter the S phase where DNA replication/synthesis takes place. The cells then enter the
phase where proteins are synthesized in preparation for division or m phase.
At the S phase, the amount of DNA a cell carries is doubled but the chromosome number remains the same. For example, if a cell enters the S phase with 2 g of DNA containing 10 chromosomes, at the end of S phase, the amount of DNA would have come 4 g while the number of chromosomes will remain 10.
Hence, if the average amount of DNA in the assayed cells immediately after mitosis is 4 picograms, the amount would be 8 picograms at the end of S phase and will still remains 8 picograms at the end of
phase.
The correct option is b.
Answer:
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