The correct answer is: A. minus end; dynein
Microtubules are cytoskeletal fibers that have an important role in the intracellular transport (movement of vesicles within the cell) and in the mitotic spindle during mitosis. The plus end of the microtubules extend through the periphery of the cells while the minus ends are anchored within the centrosome.
Necessary proteins for the vesicle’s movement are motor proteins:
• kinesin which is positive end directed
• dynein which is negative end directed
So, beside vesicles these proteins are also involved in organelles’ transport in opposite directions through the cytoplasm.
DNA replication is the process that leads to the formation of the two chromatids.
DNA REPLICATION:
- DNA replication is the process by which the information in a DNA molecule is used to synthesize another to make two identical copies.
- DNA replication occurs prior to every cellular division in order to enable daughter cells have the correct amount of genetic material.
- DNA molecules are borne on structures called chromosomes. Hence, when the information of a DNA molecule is duplicated, there is need for another chromosome to harbor the replicate.
- Chromosomes containing identical DNA molecules are termed sister chromatids. Sister chromatids are joined together by a centromere.
- Therefore, DNA replication is the process that leads to the formation of the two chromatids.
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Answer:
what’s the answer to this
Explanation:
Answer:
Potassium (k)
Explanation:
Potassium is so reactiev that it wont even be found naturally in nature, it legit racts with almost anything and doesn't take almost anything at all to start a reaction. COmpared to the other Potassium is easily number 1
Answer:
Diaphragm
Explanation:
This is also referred to as the iris.it is located under the stage of the microscope. It's main role is to control the quantity of light that gets to the specimen. The diaphragm is adjustable. Each if the 5 holes in the disc have varying diameter. And it is helpful for adjusting contrast and resolution as regarding the specimen