B.Sc. II (Biotechnology) (Semester III) (CBCS) Examination, 2018
inheritance biology
Day and Date Tuesday, 24-4-2018 Max. Marks 70
Time 2.30 p.m. to 5.00 p.m.
Instructions All questions are compulsory.
Figures to right indicate full marks.
Draw neat and labeled diagrams.
1. Rewrite the following sentences by using correct alternative 14
Extranuclear genes are located in
Lysosomes and chloroplast Lysosomes and plasmids
Ribosomes and chloroplast Mitochondria and chloroplast
Construction of maps of different chromosomes is called
genetic mapping linkage mapping
cross over map all of these
Monohybrid test cross ratio is
9 3 3 1 1 1
9 3 4 1 1 1 1
is a recessive trait.
Round seeds Purple flowers
Yellow pods Inflated pods
The XX-XO sex determination system was studied by McClung in
Grasshoppers Birds
Human Honey bee
Fur colour in rabbits is an example of
Dominance Multiple alleless
Incomplete dominance Complementation
studied the inheritance of leaf variegation in the Mirabilis
jalapa.
Thomus Sech Mendel
T.H. Morgan Carl Correns
In pigeon females are
heterogametic homogametic
sterile none of these
the typical Mendelian dihybrid ratio is changed to 9 4 3.
Complementary gene action Supplementary gene action
Inhibitory gene action None of these
10) in the yeast were first discovered B. Ephrussi.
Auxotrophic mutants Petite mutants
Lac mutants Ara mutants
11) is Y-linked disease.
Hemophilia Color blindness
Hypertrichosis Night blindness
12) Transformation naturally found in
B.subtilis H.influenzae
D.pneunoniae All of these
13) plasmids are actively involved in the process.
Transformation Conjugation
Transduction Transfection
14) The process of transformation was discovered by in bacteria.
A. Hershey and M.chase
J.Lederberg and E.Tatum
F.Griffith
Avery, MacLeod and McCarthy
2. Answer the following (any 14
Write a note competence factor.
ii) What is petite mutants in yeast
iii) What are pseudo alleles
iv) Write a note on hemophilia.
Write a note on inhibitory genes.
vi) What is epistatic gene
vii) Write significance of linkage.
viii) Define multiple alleles.
ix) Write note on X chromosome in humans.
SLR-SA 22 *SLRSA22*
Set P
3. Answer the following (any 10
Explain X linked inheritance with any two suitable examples.
ii) Describe genetic system in mitochondria.
iii) Describe law of independent assortment with suitable example.
Describe material inheritance with any two suitable examples. 4
4. Answer any two of the following 14
Describe mechanism of conjugation with neat labeled diagram.
ii) Describe gene mapping by tetrad analysis.
iii) Describe inheritance of supplementary and complementary genes with
suitable example.
5. Answer any two of the following 14
Describe Y linked inheritance with any two suitable examples.
ii) Explain process of transformation in bacteria.
iii) Describe process of crossing over with neat labeled diagram.