B.Sc. II (Biotechnology) (Semester III) (CBCS) Examination, 2018
Inheritance Biology
Day and Date Friday, 30-11-2018 Max. Marks 70
Time 2.30 p.m. to 5.00 p.m.
Instructions All questions carry equal marks.
Figures to right indicate full marks.
Draw neat and labeled diagrams.
1. Rewrite the following sentences by using correct alternative 14
plays important role in the extra nuclear inheritance.
lysosomes and chloroplast lysosomes and plasmids
ribosomes and chloroplast mitochondria and chloroplast
In linkage mapping, the distance between two genes is measured in terms of
Centimorgan Base pairs
Metre Nanometer
Typical dihybrid test cross ratio is
9 3 3 1 1 1
9 3 4 1 1 1 1
is not a dominant trait.
Round seeds Purple flowers
Yellow pods Inflated pods
The XX-XY sex determination system is occurred in
Grasshoppers Birds
Human Honeybee
Eye color in Drosophila is an example of
Dominance Multiple alleles
Incomplete dominance Complementation
studied the ABO blood groups in humans.
Thomas Sech Mendel
T. H. Morgan Karl Landsteiner
In honeybees, drones are
diploid fertile males haploid fertile females
diploid sterile males haploid fertile males
In the typical Mendelian dihybrid ratio is changed to 13 3.
Complementary gene action Supplementary gene action
Inhibitory gene action None of these
10) in the Saccharomyces cereviviae were first discovered B. Ephrussi.
Auxotrophic mutants Petite mutants
Lac mutants Ara mutants
11) is not a X-linked disease.
Hemophilia Colorblindness
Hypertrichosis Night blindness
12) In bacterial strain natural transformation is absent.
B. subtilis H. influenzae
D. pneumoniae E. coli
13) In the fertility plasmids are actively engaged.
Transformation Conjugation
Transduction Transfection
14) The process of transduction was discovered by in bacteria.
A. Hershey and M. Chase
J. Lederberg and E. Tatum
J. Lederberg and N. Zinder
Avery MacLeod and McCarthy
2. Answer the following questions (any 8
What is epistatic gene
ii) Write significance of linkage
iii) Define multiple alleles.
iv) Write a note on colorblindness.
Write a note on inhibitory genes.
Answer the following questions (any 6
What are tra genes in conjugation
ii) What are petite mutants in yeast
iii) Genetic system in plasmids.
3. Answer the following questions (any 8
Describe genetic system in mitochondria.
ii) Describe genetic system in chloroplast.
iii) Write note on X chromosome in humans.
Answer the following (any 6
Describe maternal inheritance with any two suitable examples.
ii) Describe law of independent assortment with suitable example.
4. Answer the following questions (any 10
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.
Answer the following (any 4
Describe incomplete and co-dominance with suitable example.
ii) What is complementation test
5. Answer the following questions (any 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.