Answer:
One - third.
Explanation:
The children and adults must be protected from the malnutrition and each individual has the right to attain the minimum nutrient requirement. Different programs run in U.S.A. to fulfill the nutrient deficiency.
RDA (Recommended Dietary Allowance) is a type of allowance given to the individual for the average daily intake to meet the nutrient requirement. Adequate Intake (AI) is provided when the individual do not have proper proves to develop RDA. The home delivered meals provide atleast one-third of the RDA.
Thus, the answer is one-third.
Answer:
A scientist needs to share his work with the scientific community in order for it to be recognized. The ways in which scientists can share their results are:
- The scientists can publish their work in journals. Journals are the best method to communicate a scientists work with the scientists of the world. Even some journals have the criteria to publish only peer-reviewed articles so that the work is highly authentic which is being published.
- Scientists can also present their work at different conferences. Scientists from the world gather up for these conferences.
- Scientists can also present their works to the media or to the universities.
Answer:
The correct answer is B) Large size relative to the host chromosomes
Explanation:
A vector for clonation or expression must contain sequence elements which allow it independent replication and identification of host cells which have incorporated the vector. Among these elements are:
- Replication origin (option E): allows it to replicate independently of the host genome. Option B is the same as it.
- Restriction enzyme sites (option A): in order to cut the vector and to inser the desired gene into the vector.
- Reporter gene (option E): it allows to visualize the host cells which are expresing the inserted gene of the vector. For example, a reporter gene can codificate a fluorescent protein, thus the host cells which have expresion of the vector are fluorescent.
The only option which is unuseful is option B because if the vector has too large size, the transformation efficiency will be low. That means that fewer host cells will contain the vector after transformation.
