Buildup of organisms means that the species number is pretty high.
Gradual change means that it was a slow, calm time to make the change.
I hope this helps!!
Telomerase activity is controlled during development and is extremely low in somatic (body) cells, virtually undetectable. These somatic cells age because they do not frequently use telomerase.
- Telomeres are repetitive sections at the very ends of chromosomes that are present in a variety of eukaryotic species, including humans and unicellular protists.
- Each round of DNA replication wears down a little portion of the telomeres, which serve as caps to safeguard the interior chromosomal regions.
- Most somatic (body) cells do not typically have telomerase activity, but certain adult stem cells and germ cells—the cells that produce sperm and eggs—have.
- Adult germ cells, tumor cells, and fetal tissues all contain telomerase. Telomerase activity is controlled during development and is extremely low in somatic (body) cells, virtually undetectable. These somatic cells age because they do not frequently use telomerase.
learn more about telomerase here: brainly.com/question/14213408
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Answer: B - A battery with wires
Explanation: The mitochondria is the cells source of energy
industrial pollution from factories, but to classify it would be air pollution.
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.
