Answer:
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.
Answer:
The correct order starting from next to the object is
1. coverslip
2. objective lens
3. revolving nosepiece
4. body tube
5. body tube
Explanation:
The correct order starting from next to the object is
1. coverslip
2. objective lens
3. revolving nosepiece
4. body tube
5. body tube
A cover slip is a glass that is used to cover the specimen before observing through a microscope. Thus it is the nearest to the object.
Objective lens is the one which is near to the object hence it comes after the coverslip.
Revolving nose piece is a setup to which the objective lenses are attached thus it will come after the objective lens
Body tube is the hollow and tubular structure that forms the upper part of microscope.
While ocular lens also known as eyepiece are the farthest from the object , hence they come at the last.
Glycogen is a polysaccharide composed of alpha glucose monomers which are a respiritory substrate involved in the production of energy (ATP).
