Informatics and Statistics for Biology and Allied Sciences — DU B.Sc. (Hons.) Botany Previous Year Question Papers

Informatics and statistics for biology and. allied sciences, Maximum Marlrs : 60 b) Attempt Part A and Part 8 on separate answer sheets. e) Attempt 4// parts of a question together 1., (a). Expand the following (any five) a). Fill in the blanks (any five) i. The mother and father ofbioinformatics isl ii.A in a sequence alit,rmment stands for an insertion or deletion of iii. iv. v. V1. vii. letters. Metabolomics is the scientific study of molecules left behind by cellular processes. In the uniprot database, the reviewed by experts. The first bioinformatics database was which are the small section contains high-quality entries, provides search and apalysis tools for its extensive and growing collection of chemical data. The first bacterial genome fully sequenced was 2. Write the differences between the following (any two) 2x5-10 3. Write short notes on following (any two) 4. What is molecular phylogeny? Write its applications and limitations in biological research. Construct a hypothetical phylogram and label different important components in it. 2+5+3-10 1. a. Fill in the blanks (any five) 5xl=5 i. Arrangement of statistical data into systematic rows and columns is called ii. Systematic, stratified, and cluster sampling are all examples of sampling methods. iii. The value that occurs most frequently in a data distribution is known as the iv. Graphical representation of a continuous frequency distribution is best done using a v. The square of the colTelation coefficient is technically termed as the coefficient of vi. The speciflc measure of central tendency that is most sensitive to, and heavily influenced by, extreme outlier values in a dataset is the vii. Data collected by questionnaires and surveys are a type of viii. is an example of Inferential i. ii. iii. iv. v. vi. vii. b. State True or False (any five) 5xl=5 A sample must always be a true representative of the target population to avoid sampling bias. A Type I error occurs when a statistical test incorrectly rejects a true null hypothesis. Range is a highly stable measure of dispersion because it is unaffected by extreme outlier values. When data is heavily concentrated at one extreme end of a distribution scale, it results in a perfectly normal distribution. Mean deviation is an absolute measure of dispersion calculated relative to a central value. In a perfectly symmetrical, bell-shaped normal distribution, the values for the mean, median, and mode are all exactly equal to each other. Mode always lies in between median and mean 2. Differentiate between (any two) i. ii. Null Hypothesis vs. Altemative Hypothesis Correlation Analysis vs. Regression Analysis iii. Histogram and bar diagram 3. Write short notes on the following with suitable examples (any two) i. Spearman's Rank correlation coefficient ii. Qllartile Deviation and its merits over Range iii. Standard Error iv. Applications of biostatistics