Answer:
During the asexual reproduction, bacteria can divide simply by binary fission in which one bacteria first replicate its genetic material and the cell divide in two daughter cells which are identical to the parent cell.
Asexual reproduction does not allow genetic variation therefore to get genetic variation bacteria can use conjugation, transformation and transduction process.
In conjugation, bacteria gets extra genetic material from other bacteria through sex pills. In transduction the genetic material enters into the bacterial cell through the virus then bacteria incorporate this genetic material in its genome.
In transformation, bacteria takes up the extra genetic material from it's surrounding. Therefore conjugation, transduction, and transformation helps bacterial to gain variation like as in sexual reproduction.
Explanation:
a full set of sister chromatides us created during the synthesis (S) phase of interphase , when all the chromosomes in a cell are replicated the two sister chromatides are seperated from each other two different cells during mitosis or during the second division of meiosis
The correct answer is option Selective breeding.
The selective breeding is a technique, in which two different individuals having a specific desired phenotype is present. Both the individuals have different desired phenotype. They are crossed together, so that a progeny having both type of phenotype or trait is obtained.
Hybridization, cloning and recombinant DNA technology emerged years after the introduction of selective breeding. These are very new tools used in DNA technology, whereas, selective breeding was from ancient times.
One of the reasons can be because their atoms have the same outermost shell electrons.
For example in elements fluorine and Chlorine, they both have 7 outermost shell electrons. We can know this because they're in the same group in the periodic table, which is group VII. Both of these elements have similar chemical properties, such as they both react with sodium to produce metal halides, which is a kind of salt.
However, note that their chemical properties will not be exactly the same, as they have different number of protons which distinguishs between different elements.
I think you're trying to refer to the mitochondria, though it is an organelle in itself, which is part of a cell. It's known as the "powerhouse of the cell" due to the process of cellular respiration, simplified as the way the cell acquires energy.