This is a scientific question because you could conduct an experiment to test the theory.
Answer:
Sodium chloride removes proteins from DNA and helps in DNA precipitation.
Explanation:
The Deoxyribonucleic acid (DNA) is negatively charged due to the highly polar phosphate groups that make up the phosphate backbone. The molecules of water are also highly polar and they have positive charge, thereby water molecules interact with the negative charges of the DNA. The sodium chloride generates temporary attraction forces between sodium (positive) ions and the DNA backbone (negative), thereby DNA can be disassociated from the aqueous layer. Moreover, sodium chloride helps to remove proteins (histones) that bound to DNA and also helps to maintain proteins in the aqueous layer.
Protostomes develop a mouth first and then an anus. This is the difference between protostomes and deuterostomes.
In protostome development, there is a spiral radical and indeterminate cleavage. The blastopore becomes the mouth and the coelom forms from the mesoderm.
In deuterostomes development, radial and indeterminate cleavage takes place. The blastopore is the new anus and the coelom forms from budding off the wall of the archenteron.
Answer:
Same age stars is a mark of Galaxy formed by collapse
Explanation:
Before a galaxy can be formed, the materials that help in building the galaxy rotate at a speed, it's the come together and collapse by it self due to it's gravitational pull. When it's collapse globular are formed and it's away from it's nucleus. The clusters this give rise Halo stars which are stars of the same age.
1. Similarities:they are both processes of cell division by which cells reproduce.
They share several steps of the process(prophase, metaphase, anaphase e telophase, cytokinesis) but meiosis has another division also with those same steps.
In both cases the cell duplicates its DNA by pulling it apart into two sets, place the sets on each end of the cell, and then divide down the middle.
Both produce new cells based on their parent cells' genes.
