Yes if u cut the tree down and look at the ring on the inside of it it gives u an estimate about how long its been around hope that helps
Answer: Telomeres, Helicases, Okazaki, DNA polymerase, Topoisomerase
Explanation:
1. Telomeres these are set of repetitive nucleotide sequence found at the end of a linear chromosomes they help preventing the DNA chromosome frrom sticking to other DNA chromosomes.
2. Helicases are proteins that uses energy (ATP) to unwind DNA strands during replication.
3. Okazaki fragments the small DNA nucleotide sequence synthesized separately on the lagging strand.
4. DNA polymerase are enzymes that catalyzes the addition of deoxyribonucleotides to DNA during replication.
5. Topoisomerase are enzymes that prevent single stranded DNA from supercoil, rumple and winding back during replication.
The answer is gelatin. Correct me if im wrong.. Since gelatin consist of the elements Carbon, Hydrogen, Nitrogen and Oxygen. (same as the protein elements.) [biuret test is used to test the presence of amino acids]
The correct answer is D. Salt water.
Explanation
The hydrosphere is the system that groups all the waters of the earth that include oceans, seas, rivers, lakes, lagoons, frozen waters like ice and snow, among others. The water of the earth can be classified between salt water and freshwater, within the first group we find the oceans and the seas that represent two thirds of the total water of the earth, that is, 93 percent of the total water of the earth, a figure close to 1 370 323 000km³; the rest of the water is fresh and consists of rivers, lakes, lagoons, streams, groundwater, and glaciers. So, the correct answer is D. Salt water
Percentage of human sperm cells carry an X chromosome is C 50%
