MacroPhage

https://drive.google.com/file/d/1sQPX7XCPe4xXd6jycnoV1PH4GjxobewW/view?usp=sharing There are some questions that their answers may not be correct ok!!

E pidemiology is the study (scientific, systematic, data-driven) of the distribution (frequency, pattern) and determinants (causes, risk factors) of health-related states and events (not just diseases) in specified populations (patient is community, individuals viewed collectively), and the application of (since epidemiology is a discipline within public health) this study to the control of health problems. P urposes of Epidemiology: a)     Describing disease occurrence and distribution of disease in population groups and development over time (trend). b)     Identifying cause and risk factors of disease (aetiology). c)     Undertaking experiments to assess the effects of treatments or preventive efforts. d)     Elucidating the natural history and prognosis of disease. e)     Providing foundation for public policy. T ypes of Epidemiology: 1)     Descriptive Epidemiology:   Is the type of epidemiology which aims to study the distribution and determinant

There are three major types of RNA that participate in the process of protein synthesis: rRNA, tRNA, and mRNA. First: rRNA: a)      Are found in association with several proteins as components of the ribosomes, the complex structures that serve as the sites for protein synthesis. b)     There are three distinct size species of rRNA (23S, 16S, and 5S) in prokaryotic cells while in eukaryotes there are 4 species of rRNA (28S, 18S, 5.8S, and 5S). c)      Make up about 80% of the total RNA in the cell. Second: tRNA: a)      Is the smallest (4S) of the three major types of RNA molecules. b)      There is at least one specific type of tRNA molecule for each of the 20 amino acids commonly found in proteins. c)      Make up about 15% of the total RNA in the cell. d)      Contain a high percentage of unusual bases (Pseudouridine ), for example, dihydrouracil and have extensive intrachain base-pairing. e)      Serves as an “adaptor” molecule that carries its specific

As we defined data before that is any observational collected in respect of any characteristic or event, data can be categorized as: primary data and secondary data . And every type of data is different from the other in methods of collection. Primary sources of data are that collected first-hand especially for purpose of study and from people who have a direct connection with it. Finding out first-hand the attitudes of a community towards health services, ascertaining the health needs of a community , evaluating a social program , determining the job satisfaction of the employees of an organization , and ascertaining the quality of service provided by a worker are examples of information collected from primary sources. Secondary sources of data are that provide second hand information and involves analysis, interpretation, and evaluation of primary data. And these sources are readily collected and available from other sources. The use of census data to obtain