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Answer:
The correct answer will be option-F.
Explanation:
The DNA transformation is the horizontal transfer of DNA in which the DNA is taken up by the competent bacterial cells from the surrounding.
The transformation process was studied by the Griffith in 1928 in <em>Streptococcus pneumoniae</em>- R and S- strains in which R-strain bacteria took the DNA from the surrounding environment and became S-strain.
The cells become competent by changing their cell wall composition and take DNA after which the DNA gets integrated with the genome of the bacteria through homologous recombination. The bacteria thus acquires the new feature as a result of this integration with genome which is transferred to the offsprings.
Thus, option-F is the correct answer.
Answer: codon AUG
Explanation: The codon AUG is called the START codon as it the first codon in the transcribed mRNA that undergoes translation. AUG is the most common START codon and it codes for the amino acid methionine (Met) in eukaryotes and formyl methionine (fMet) in prokaryotes.
Answer:
Different from other types of liposomes, transfersomes are mainly developed for transdermal drug delivery systems. Transfersomes are composed of self-assembled phospholipids (eg. phosphatidylcholine) and edge activators (such as a biocompatible surfactant or an amphiphilic drug) which increases lipid bilayer flexibility and permeability. Therefore, transfersomes can deform and pass through narrow constriction (from 5 to 10 times less than their own diameter) to underlying viable skin without measurable loss due to transdermal osmotic gradients which is developed by skin penetration barrier.
Transfersomes are an ideal choice for drug development of non-invasive therapeutic use. Based on the capability of increasing the transdermal flux, prolonging the release and improving the site specificity of bioactive molecules, transfersome has become a potential candidate for both systemic and topical delivery of drugs.
Transfersomes have high entrapment efficiency (e.g. close to 90% for lipophilic drugs);
Better penetration of intact vesicles due to its high deformability;
A carrier for both low and high molecular weight drugs;
Transfersomes protect the encapsulated drug from metabolic degradation;
Easy to scale up, simple procedures do not involve unnecessary pharmaceutically unaccepted additives;
Transfersomes are biocompatible and biodegradable as they consist of natural phospholipids.
Explanation:
https://www.creative-biostructure.com/Transfersomes-Production-614.htm
<h2>Interactions </h2>
Explanation:
1) Direct interaction: A direct interaction deals with the direct impact of one individual on another when not mediated or transmitted through a third individual
Direct interactions in the given habitat are:
- Bee and dragonfly
- Dragonfly and fish
- Terrestrial flowering plant and bee
2) Indirect interaction: An indirect interaction is the impact of one organism or species on another that is mediated or transmitted by a third
Indirect interactions in the given habitat are:
- Bee and fish
- Dragonfly and terrestrial plant
- Terrestrial flowering plant and fish
