Explanation:
Endoplasmic reticulum is one of the cell organelles found in the cytoplasm of the cell. It is an important cell structure. It is made up of folded membranes.
- In the endoplasmic reticulum protein is synthesized.
- It helps in the transport of protein molecules to the golgi apparatus.
- Protein is usually folded in the endoplasmic reticulum.
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Answer;
-Inactivation; limited
Differentiation requires inactivation of particular genes to produce populations with limited capabilities that form tissues.
Explanation;
-Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression.
-Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions.
-Gene expression plays a critical role in the morphological changes that take place in a developing embryo and fetus and in the differentiation of stem cells to form specialized cells.
Answer:
D. A brown gas produced
Explanation:
When a chemical reaction occur, there are several changes that takes place such as change in color, odor change, formation of a gas, and formation of a precipitate etcetera.
In the given chemical reaction, two colorless gas (NO and O2) react together and form brown gas (NO2). So, the change of gas from colorless to brown gas is the evidence that shows chemical reaction occurred.
Hence, the correct option is "D. A brown gas produced".
Answer:
the first is stamen and the other is what the stamen produce the pollen of the part of the flowers