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siniylev [52]
3 years ago
9

Which properties are used to identify minerals? Select 3 choices.

Biology
2 answers:
worty [1.4K]3 years ago
8 0

Used to identify properties are

  • luster
  • magnetism
  • streak
larisa [96]3 years ago
3 0

Answer:

Magnetism, Luster, Streak

Explanation:

Properties of minerals are usually used by the mineralogist to identify or determine the identity of a mineral (specimen).

Magnetism: is the property of the mineral that attract or repel other magnetic materials.

Luster: is the property of minerals that shows how the surface of the minerals reflect s light and it is usually affected by the brilliance of the light that is used to observe the mineral surface.

Streak: usually shows the true color of minerals and used to be in powered form.

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The chromatin or substance that makes up the nuclei of cells and that results from the interaction of DNA with histonic and non-histonic proteins and RNA; it can present different degrees of packing or contraction. When chromosomes are stained with chemicals that bind to DNA, densely stained regions and less densely stained regions appear. Heterochromatin are segments of the chromosome that stain strongly and remain visible, practically, during the entire cell cycle. There are few genes in these regions and therefore low transcriptional activity. They are supercondensed regions. Euchromatin are segments of the chromosome that are not visible during telophase and interphase, only in metaphase. It corresponds to regions that are less compact and in which there is a higher gene density.

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