Choose the true statement(s) that support(s) the endosymbiotic theory. To be marked correct, you'll need to select all true stat
ements, as there may be more than one correct answer. View Available Hint(s) Choose the true statement(s) that support(s) the endosymbiotic theory. To be marked correct, you'll need to select all true statements, as there may be more than one correct answer. a.Many mitochondrial genes resemble proteobacteria genes, while the genes in the chloroplast resemble genes found in some photosynthetic bacteria.
b.Endosymbiotic theory describes the evolution of prokaryotes as a series of sequential cell-merging events between a eukaryotic ancestor and certain prokaryotes.
c.Mitochondria and chloroplasts both have their own circular DNA and 70S ribosomes that are similar to those found in bacteria.
d.Mitochondria and chloroplasts replicate by a process similar to mitosis.
a.Many mitochondrial genes resemble proteobacteria genes, while the genes in the chloroplast resemble genes found in some photosynthetic bacteria.
c.Mitochondria and chloroplasts both have their own circular DNA and 70S ribosomes that are similar to those found in bacteria.
d.Mitochondria and chloroplasts replicate by a process similar to mitosis.
Explanation:
Endosymbiotic theory states that mitochondria and chloroplast which are organelles of eukaryotic cells were once independently living micro-organisms but with due course of time eukaryotic cells engulfed them and they become an integral part of these eukaryotic cells.
The resemblance between mitochondrial genes with those of proteobacteria and chloroplast genes with photosynthetic bacteria strongly support endosymbiotic theory. Apart from this, the presence of their own DNA that too circular just like prokaryotic microbes and 70 S ribosomes also support this theory. Also just like prokaryotic cells, before cell division mitochondria and chloroplasts undergo replication by means of a process known as binary fission.
<span>Georgio instantly feels pain due to the message carried to his brain by </span>myelinated axons. The message of the ache is carried by unmyelinated axons. The myelinated axon is highly "insulated" axon that r<span>eceives input and transmit impulse quickly.</span> The purpose of the naked axon with larger dendritic field which is called unmyelinated axon is to receive as much input as possible.
As per the two attachments given in the question, option "B" is the one choice among the choices that are given <span>shows an unsaturated fatty acid. The other options given are incorrect and can be easily neglected. I hope that this is the answer that has actually come to your great help.</span>