Answer:
False
Explanation:
Mendel realized that the F2 had a phenotypic ratio 3:1, meaning 3/4 = 75% were yellow and 1/4 = 25% green.
Mendel observed that the F1 expressed only one of the alternative variants (in this case, only yellow seeds appeared), while the other variant (green) disappeared. Mendel named dominant the expressed variant. Mendel allowed auto pollination and observed that in the second generation, F2, the other disappeared variant reappeared. Both alternative variants were present in the F2. Mendel named recessive the second alternative variant.
Mendel thought that hereditary traits determined by discrete factors were the possible explication for these phenotypes. These factors should have been present in the F1 in pairs. One of them came from one parental plant, and the other factor came from the other plant. These factors then separated again when sex cells were produced, giving two types of gametes, each with only one factor.
Mendel concluded that each individual (plant) has a pair of factors (alleles), one for each trait (yellow and green) and that the pair separates (segregates) during the formation of the gametes. This conclusion is known as the segregation principle (First Mendels´ Low).
The type of microscope which would be the best tool to use to view the surface of a bacterial cell is a Scanning electron microscope.
This is because it can be used to look at the surface of objects at high resolution. Maximum magnification: Approximately 500,000x. Best for: Looking at surfaces of objects
<h3>What is a Microscope?</h3>
This refers to an optical instrument that is used for viewing very small objects and can be magnified several hundred times.
The type of microscope which would be the best tool to use to view the surface of a bacterial cell is a Scanning electron microscope.
This is because it can be used to look at the surface of objects at high resolution. Maximum magnification: Approximately 500,000x. Best for: Looking at surfaces of objects
Hence, we can see that your question is incomplete, so a general overview was given to you, and only the last question was answered.
Read more about microscopes here:
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Ans.
Paper waste prevention is defined as a practice to reduce or eliminate use of paper, which is potential for the efficient use or disposal of paper. It decreases the environmental impacts due to both paper manufacturing and paper recycling, such as demands on forest resources).
Use of advance technologies, such as E-mail (electronic mail) can help in cut down on paper waste. Nowadays, E-mail has replaced conventional letters and faxes as it is more eco-friendly than letters and faxes, which needs paper consumption.
Thus, the correct answer is 'option d). E-mail.'
