Answer:
Part-A will lead toward the head development of Drosophila.
Explanation:
A morphogen is a substance that governs the pattern of tissue development in the process of morphogenesis or pattern formation, Pattern formation is one of the core processes in the development of Drosophila's body. Bicoid was the first protein demonstrated to act as a morphogen. Bicoid is a gene whose protein concentration gradient patterns the anterior-posterior (A-P) axis during Drosophila embryogenesis. Although Bicoid is important for the development of Drosophila's head. Bicoid concentration is high in the anterior side or in part-A of the Drosophila that will become the head. Bicoid concentration is low at the posterior side or part-E of the Drosophila that will become the tail.
The difference between bacterial cells and animal cells is that animal cells have a membrane surrounding their nucleus while bacterial cells do not have membrane surrounding the nucleus.
DIFFERENCE BETWEEN BACTERIA AND ANIMAL:
- Bacteria and animal are both living organisms, however, they are distinct in the possession of membrane bound organelles.
- Bacteria are prokaryotic organisms meaning that they do not possess a membrane-bound nucleus in their cells.
- On the other hand, animals are eukaryotic organisms meaning that they possess a membrane-bound nucleus.
Therefore, the difference between bacterial cells and animal cells is that animal cells have a membrane surrounding their nucleus while bacterial cells do not have membrane surrounding the nucleus.
Learn more: brainly.com/question/15329345?referrer=searchResults
Answer:
kldhjhfhjsdfjsd
Explanation:
mnklndsvkljvlkvnkllkbknbvklxvkllmmcmvmmvndnxlvnjjf
Answer:
By way of introduction, A260/A280 ratio is use to measure Protein Contamination. This procedure was first described to measure protein purity in the presence of nucleic acids. However it is now commonly used to assess protein contamination of DNA. The method to determine the concentration of protein contamination by using A260/280 ratio method is well explained below by filling in the missing words.
Explanation:
The A260/A280 ratio method estimates protein __purity___ by measuring the absorbance maximum at 280nm caused by the amino acids__cytosine___, ____Adenine____, and ___Guanine_________ Since ___Spectrophotometer____ also absorbs in the UV range, we can correct for this contaminate by measuring the absorbance maximum at ____260nm______ and using the following equation: Concentration (µg/ml) = (A260 reading – A320 reading) × dilution factor × 50µg/ml___ When extrapolated from a standard curve, the Bradford data indicates the amount (in _ug__ ) of __unknown ___ protein found in a sample. If you know the volume of sample that was added to the assay then you can calculate the protein ____concentration ___ of the sample. The coomassie blue dye in the Bradford assay specifically binds primary ¬¬___sulfonic___ and __positive amines__ groups of the amino acid side groups of the proteins. The more the dye binds to the sample, the _anionic_ the blue color will be, and the absorbance at 595¬nm will be_shifted Amax___. A sample with an unusually __protein___ number of ___280nm of Tyrosine __ [give a specific example] amino acids will underestimate the total amount of protein present in the sample.
