Answer: B. The color of a mineral's powder doesn't change.
C. The densities of many minerals are quite similar.
D. A mineral can break in only one way.
A mineral is a naturally occurring inorganic compound. It is a chemical compound that usually found in crystalline form. The color of the mineral's powder can change because of the oxidation or reduction of particles present in it. The density of many minerals cannot be same because all mineral particles exhibit different composition of atoms or molecules which are responsible for physical and chemical structure of minerals. Hence, minerals vary in density. A mineral can be broken down into many ways like fracture, cleavage and other methods.
The answer is
D.) FEEDBACK INHIBITION.<span />
This question is not complete
Complete Question:
A transmembrane receptor that functions at the cell membrane has an exoplasmic N-terminal sequence, a signal-anchor sequence, and a stop-transfer-anchor sequence. This protein was first inserted into the membrane where?
a) in the late endosome
b) in the Endoplasmic Reticulum
c) at the plasma membrane
d) in the cis- Golgi
Answer:
Option b) In the Endoplasmic Reticulum
Explanation:
A transmembrane receptor is a the amino acid chain of a transmembrane proteins.
The proteins is inserted into the Endoplasmic Reticulum through the process of translocation.
The amino acid chain of the transmembrane protein has an exoplasmic N-terminal sequence, a signal-anchor sequence which is hydrophobic alpha helix and a stop-transfer-anchor sequence which consists of a 22-25 hydrophobic amino acid sequence.
C. Color vision
Inherited on X chromosome
