They are called transmission electron microscopes.
1. two copies of the duplicated chromosome are attached at their centromeres before separating
2. chromosomes replicate before cell division
3. chromosome separation begins at the origin of replication on DNA
4. Before separation duplicated chromosomes condense; nuclear envelope fragments permitting chromosome separation
5. replicated chromosomes separate by attaching to some other structural feature of the cell
Explanation:
In the given question, the DNA replication steps of both prokaryotes and eukaryotes are provided in which some are common to both eukaryotes and prokaryotes and some are unique to the prokaryotes and eukaryotes.
<u>Eukaryotes
</u>
1. Option-4 as the nuclear envelope is present in eukaryotes only.
2. Option-1 as centromere allows the kinetochores bind to the centromere which separates the chromosome.
<u>Bacteria
</u>
1. Option-3 as DNA replication process separates the strand of the DNA.
<u>Both
</u>
1. Option-5 as the chromosomes separate by other structures like microtubules
2. Option-2 as genetic material to be passed on to the generation must be replicated.
Van Leeuwenhoek discovered "protozoa" - the single-celled organisms and he called them "animalcules". He also improved the microscope and laid foundation for microbiology. He is often cited as the first microbiologist to study muscle fibers, bacteria, spermatozoa and blood flow in capillaries.
Here is the complete question
When an individual is exercising heavily and when the muscle becomes oxygen-deprived, muscle cells convert pyruvate to lactate. What happens to the lactate in skeletal muscle cells?
A. It is converted to NAD+.
B. It produces CO2 and water.
C. It is taken to the liver and converted back to pyruvate.
D. It reduces FADH2 to FAD+.
E. It is converted to alcohol.
Answer
C. It is taken to the liver and converted back to pyruvate
