Both mitosis and meiosis are a cell division process having various similarities and differences.
Similarities between the process of mitosis and meiosis include:
- Both the processes are cell division process.
- Both the processes occur in the nucleus of a cell.
- Both the processes result in the formation of daughter cells.
- The main phases are the same in both the processes
The differences between mitosis and meiosis include:
- As a result of mitosis, two daughter cells are formed. As a result of meiosis, four daughter cells are formed.
- The process of mitosis occurs in somatic cells whereas the process of meiosis occurs in reproductive cells.
- The daughter cells formed as a result of mitosis are the exact copies of parent cell. In the process of meiosis, genetic recombination occurs and hence the daughter cells are not exact copies of parent cells.
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Gametes are produced as a result of cell division.
One of the fundamental properties of meiotic cell division is that it produces four haploid daughter cells, each with half the chromosome number of the parent cell.
Meiotic cell division is divided into two phases: interphase or pre-meiotic phase and meiotic phase.
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A bacterium engulfed by a white blood cell through phagocytosis will be digested by enzymes contained in vacuoles secretory (option A).
<h3>What is phagocytosis?</h3>
Phagocytosis is the form of endocytosis in which a cell incorporates a particle by drawing the particle into a vacuole of its cytoplasm.
The white blood cell, also known as the leucocytes are the defense of the body as they help fight against foreign substances which they attack by phagocytosis.
Since the foreign bodies are pulled into the vacuole, hence, it can be said that bacterium engulfed by a white blood cell through phagocytosis will be digested by enzymes contained in vacuoles secretory.
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Examples of processes which form minerals are the last ones - volcanic eruption and shifting of tectonic plates.
Photosynthesis has nothing to do with minerals, but with plants feeding. Freezing of oceans also does not create minerals.
Answer: Poly(ethene) has a higher melting point than ethene. The reason can be seen in the explanation below.
Explanation:
Ethene is one of the most important alkene hydrocarbons which is one of the main products obtained during the cracking of the gas oil fraction of petroleum.
Polymerization is a process whereby two or more simple molecules are linked to form a much larger molecule usually called polymers. Poly( ethene) is formed when ethene and it's derivatives undergoes polymerization reaction. Therefore poly( ethene) is a polymer of ethene.
To describe the reason why there is higher melting point in poly (ethene) than ethene is that poly( ethene) consists of very long chain carbon atoms which are held together by a strong covalent bonds. There are greater intermolecular forces between the long chains compared with smaller simple molecules like ethene.
