Solapur University CELL BIOLOGY AND BIOSTATISTICS 2015 Question Paper

Solapur University
B.Sc. – I (Biotechnology) (Semester – I) Examination, 2015
(CGPA Pattern)
CELL BIOLOGY AND BIOSTATISTICS
Day and Date : Saturday, 18-4-2015 Max. Marks : 70
Time : 11.00 a.m. to 2.00 p.m.
 N. B. : 1) All questions are compulsory.
2) Draw a neat labelled diagram wherever necessary.
3) Figures to the right indicates full marks.
4) Use of calculator is allowed.
SECTION – I
(Cell Biology)
1. Multiple choice questions : 5
1) ___________ is known as power houses of cell.
a) Mitochondria b) RER c) Plastid d) Ribosome
2) __________ is termed as equational division.
a) Necrosis b) Apoptosis c) Mitosis d) Meiosis
3) __________ is act as initiation codon in translation.
a) UUA b) AUG c) UGA d) UAG
4) Uncontrolled cell division is known as ___________
a) Cell division b) Mitosis c) Cancer d) Meiosis
5) ___________ is an example of active transport.
a) Simple diffusion b) Osmosis
c) Facilitated diffusion d) Proton pump
2. Answer any five of the following : 10
i) Mycoplasma
ii) Types of plastids
iii) Applications of cell synchrony
iv) Polytene chromosome
SLR-M – 5 -2-
v) Unit membrane model of plasma membrane
vi) Synaptic signalling
vii) Components of protein biosynthesis.
3. A) Write short notes on any two of the following : 10
i) Generalized structure of animal cell.
ii) Describe structure, types and function of chromosome.
iii) Describe structure of desmosomes and hemidesmosomes.
B) Answer any one of the following : 10
i) Describe protein trafficking in nucleus and mitochondria.
ii) Explain ultrastructure of eukaryotic cell wall and add a note on its functions.
SECTION – II
(Biostatistics)
1. Multiple choice questions : 5
1) The sum of deviations of all the observation from arithmetic mean is always
__________
a) Positive b) Negative
c) Zero d) None of these
2) A curve which is more peaked than the normal curve is called ________
a) Mesokurtic b) Platykurtic
c) Leptokurtic d) None of these
3) If ___________ then it indicates that there is no linear relationship between
the two variable.
a) r = +1 b) r = –1 c) r = 0 d) None of these
4) If two events A and B are independent then the probability that they will both
occur is given by ___________
a) P(A) + P(B) b) P(A) ⋅P(B)
c) P(A) – P(B) d) P(A) P(B)
5) In __________ distribution, the mean and the variance are equal.
a) Binomial b) Poisson
c) Normal d) None of these
-3- SLR-M – 5
2. Answer any five of the following : 10
1) Define mean deviation about median.
2) Define Binomial distribution.
3) If variance = 16.4 and mean = 25 calculate coefficient of variation.
4) If p = 0.4, E(X) = 2 find n and Var(X).
5) The mean and standard deviation of 100 observations is 45 and 10 respectively.
Find the new mean and standard deviation if each observation is increased
by 5.
6) Define parameter and statistic.
7) Merits and demerits of median.
3. A) Write short notes on any two of the following : 10
i) Explain median by graphical method.
ii) Explain Kurtosis.
iii) Explain correlation by scatter diagram method.
B) Answer any one of the following : 10
1) Calculate standard deviation and coefficient of variation for the following
frequency distribution :
Marks 0 – 20 20 – 40 40 – 60 60 – 80 80 – 100
No. of Students 5 12 32 40 11
2) Calculate the value of correlation coefficient by using the following data :
n = 7, ∑ x = 349, ∑ y = 366, 2 ∑ x = 19753, 2 ∑ y = 21100, ∑ xy = 20343.
Comment on your result.
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