Answer: The whitefish embryo is a good place to look at mitosis because these cells are rapidly dividing as the fish embryo is growing. The onion root is also a good place because this is the area where the plant is growing.
Explanation:
The answer is pollination
Answer:
E. The 32P was associated with the bacterial cells and 35S was associated with the phage particles.
Explanation:
Hershey and Chase's experiment proved that DNA serves as the genetic material of the cell.
This experiment used the bacteriophage which could infect the bacteria by integrating its DNA into the bacterial genome. For this, he used radioactive phosphorus and radioactive sulphur.
Phosphorus is a constituent of the DNA and sulphur is the constituent of the proteins. This means if the DNA is transferred, then radioactive Phosphorus will be transferred but if proteins are transferred then radioactive sulphur is transferred.
He found the radioactive phosphorus attached to the bacteria and sulphur to the phage itself. This suggested that the DNA material is transferred and acts a hereditary material and not the protein.
Thus, Option-E is correct.
Answer:
These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils. Pathogenic (disease-causing) microorganisms must make it past this first line of defence. If this defence is broken, the second line of defence within your body is activated.
Explanation:
