B.Sc. II (Biotechnology) (Sem. III) (CGPA) 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 carry equal marks.
Figures to the right indicate full marks.
Draw neat and labeled diagrams.
1. Rewrite the following sentences by using correct alternative 14
X chromosome of father is transferred to
Son Grandson
Daughter Both son and daughter
Roans are produced in cattle's because both alleles expressed.
Partially Alternately Equally Simultaneously
Plasmagenes are located on the DNA.
Chromosomal Mitochondrial
Nuclear X and Y chromosomal
The method of construction of maps of different chromosomes is called
Genetic mapping Linkage mapping
Cross over map All of these
Experimental material selected by Mendel is wise due to
Self-pollinating Annual plant
Produce viable seeds All of these
Extra-nuclear inheritance by chloroplast was first studied in by
Carl Correns.
BGA Maize
Four clock plant Cyanobacteria
In disease patient can't distinguish red and green colour.
Hemophilia Color blindness
Hypertrichosis Night blindness
In four clock plants, formation of green, pale or white and variegated leaves
on same plant in a cross between
Variegated × Variegated
Green × Variegated
Pale or White × Variegated
Green × Green
Holandric genes are also called as
Autosomal X-linked
Y-linked genes None of these
10) In inhibitory gene action, the ratio is
9 3 3 1 9 7 9 3 4 13 3
11) Monohybrid phenotypic ratio in the F2 generation is
9 3 3 1 1 1 1 1 9 3 4 3 1
12) Transforming bacteria produce factor for internalization of
foreign DNA.
Complement Compatibility
Component Competence
13) Virulent phages are responsible for type of life cycle in the
host cell.
Lysogenic Lysolytic
Lysogenic and Lysolytic None of these
14) Sex pilus act as tube during transfer of plasmids in bacterial cells.
Transduction Conjugation
Transformation Transcription
2. Answer the following (any 14
What is back cross
ii) What is hypostatic gene
iii) What is complete linkage
iv) What is lysogeny
Significance of crossing over.
vi) What is cytoplasmic inheritance
vii) What is myopia
viii) What is Haplodiploidy
ix) What are plasmids
3. Answer the following (any 10
Prove law of independent assortment with suitable example.
ii) Describe process of transformation with neat labeled diagram.
iii) Describe process of mapping by tetrad analysis .
Describe multiple alleles with suitable example. 4
4. Answer any two of the following 14
Describe process of crossing over with neat labeled diagram.
ii) Explain extranuclear inheritance with any two suitable examples.
iii) Describe fiber folded model in bacteria.
5. Answer any two of the following 14
Describe modifications of Mendelian ratios with any two suitable examples.
ii) Describe X and Y linked inheritance with any one suitable example.
iii) Explain process of specialized transduction in bacteria.