• Meristematic tissue has cells small in size and isodiametric in shape. Permanent tissue has cells large in size and their shape varies.
• Vacuoles are usually absent in meristematic tissue. Vacuoles are present in living cells of permanent tissue.
Answer:
the birth rate on Earth is higher than the death rate
Answer:
C. Molecules such as cyclins are in high concentration in the cytoplasm of a dividing cell and will signal the fused cells nucleus to undergo mitosis
Explanation:
Various stages of the cell cycle are under tight regulation. Specific proteins such as cyclins and cyclin-dependent protein kinases determine if the cell would progress from one stage of the cell cycle to the next. When a cell is in the metaphase, the cyclins specific for mitosis are present in a higher amount in the cell. These cyclins bind to the specific CDKs and activate them.
The activated CDKs then phosphorylate proteins that make the cell to move through various stages of mitosis. Therefore, fusing a G1 cell with a cell in metaphase of mitosis would trigger mitosis in the G1 cell due to the presence of mitosis specific cyclins in the second cell.
<span>Answer: There would be more cellular damage
from harmful products of the light reactions of photosynthesis.</span>
<span>Photorespiration
is a light dependent reaction that uptake molecular oxygen and release of
carbon dioxide from organic compund. Photorespiration is linked to
photosynthesis by ribulose-1,5-bisphosphate carboxylase. However, consequence of mutation in plant due to
photorespiration deficiency will result into </span>more cellular damage from harmful products of the light
reactions of photosynthesis.
