After crystal violet staining, the Gram-positive bacteria may appear dark blue or violet. The cell wall of gram positive bacteria have thick peptidoglycan layer, thus it retains the crystal violet stain compared to gram negative bacteria.
Answer:
All results for the experimental groups involving wing surgery would be invalid.
Explanation:
The experimental group involving wing surgery would not lead to correct results because it is a direct parameter that is impaired. This has been already clearly stated in the question that these flies are prone to attack compared to those which are not treated. There could be several reasons for that such as: (1) the reattachment would not have been successful, and/or (2) the flies' health (fitness) status would have been compromised.
On the other hand, it is not correct that all experimental groups will lead to incorrect results because the untreated flies were not attacked (or less attacked). Similarly, there is no condition given for houseflies rather only zonosemata flies. So 3rd option is also not possible. Finally, the reliability of the results would definitely change because the treated flies would be more attacked and lead to a clear difference in results.
Answer:
Green plants have the ability to make their own food. They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. A pigment is a molecule that has a particular color and can absorb light at different wavelengths, depending on the color.
The kind of lipid that forms when a glycerol combines with fatty acids through dehydration synthesis is the trigylceride. It is also known as a triacylglycerol. It is compound that is formed from a glycerol molecule and three molecules of fatty acid. It is synthesized by the reaction dehydration synthesis wherein water is the by-product of the process. The -OH from the functional group of glycerol are detached and the fatty acids would attach to it forming the triglyceride. A dehydration synthesis involves the combining of smaller molecules to be able to form a larger molecule and along with it water molecules are being released. It is also known as a condensation reaction.
