Cytokinesis performs an essential process to separate the cell in half and ensure that one nucleus ends up in each daughter cell. ... The contractile ring shrinks at the equator of the cell, pinching the plasma membrane inward, and forming what is called a cleavage furrow.
Answer:
nucleotides
Explanation:
the DNA is actually made of repeating units called nucleotides
The prefix "auto" means self
Answer:
Option A, the liquid level in a capillary tube will drop below the surrounding liquid and the surface in the capillary tube will have a convex meniscus.
Explanation:
A liquid will wet the surface of the container in which it is contained only when the adhesive forces between the molecules of the liquid are weaker than the adhesive force between the surface wall of the container and water.
A convex meniscus is formed when the attractive forces between the molecules of liquid (cohesion) becomes greater than attractive forced between the water molecule and the container's surface (adhesion)
Convex meniscus simultaneously move the surface of the liquid in the downward direction due to which its level become lower than the surrounding layer.
Hence, option A is correct
The idea that the eukaryotes evolved from the unicellular organisms. This idea is based on the evidence of the endosymbiosis. The endosymbiosis is based on the concept that the mitochondria and the chloroplast have their own DNA. All the eukaryotic animal cells have mitochondria. It is believed that the mitochondria and chloroplast were separate unicellular organisms before they were engulfed by other unicellular bacteria and started residing inside them.
Hence, the evidence for the given idea is that the mitochondria and chloroplasts have their own DNA.