Answer:
miosis
Explanation:
Does crossing over occur in metosis? No, because chromosomes do not pair up (synapsis), there is no chance for crossing over. Following cytokinesis what chromosomes do the daughter cells contain? Daughter cells contain the same number and kind of chromosomes that were in the original cell.
Answer:
<em>The evidence that suggests RNA appeared before DNA is the fact that RNA can act as an enzyme to self-edit their own genetic code. </em>Moreover, it has the ability to store genetic information, while transfer and ribosomal RNA have the ability to translate genetic information into proteins.
Explanation:
RNA has a great capability as a genetic molecule, it once had to carry on hereditary process on its own. It is absolutely sure that RNA was the first molecule of heredity. However, a single stranded RNA is rather unstable and easily damaged by enzymes. By essentially multiplying the existing RNA molecule, and using deoxyribose sugar instead of ribose.
<em>The DNA evolved as a much more stable form to pass genetic information with accuracy. It shows a biological evolutionary purpose .</em>
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Atlantic ocean is a Plate boundaries
The permeability of the postsynaptic neuron changes; consequently, its membrane potential is changed as well
