Separation of homologous chromosomes in meiosis I because it produces 2 haploid (n) daughter cells from a single diploid (2n) parent cell
Answer:
Organs
Explanation:
When organs work together, they are called systems.
Answer:
<h3>plant has cell wall but animals don't have </h3>
Answer:
mutation in DNA
Explanation:
Mutations are changes in the genetic code that can occur in many ways. Each time a cell divides, say, DNA must be copied into two copies, one copy for each new cell. Although this copying is very precise, it is still not perfect - for about every billion accurately copied databases, one is mistranslated.
Another source is DNA damage, which can occur spontaneously through the normal life of the cell, or through external toxins or negative influences (ultraviolet radiation, for example). Through evolution, cells have developed a very complex system for repairing changes in DNA, but these systems not only have limitations but can sometimes cause additional errors themselves.
Answer:
to know what you're talking about
