Q1
mcq
DNA element, which has ability to change its position is called :
- A. Intron
- B. Recon
- C. Cistron
- D. Transposon
Solution hidden
Log in to view solution →
Q2
mcq
The selected tissue to establish a new plant in a culture medium :
- A. Embryoid
- B. Callus
- C. Plantlets
- D. Explant
Solution hidden
Log in to view solution →
Q4
mcq
Match the following about mushroom cultivation.
(1)Straw size (i)20 cm
(2)Distance between blocks (ii)75 - 85%
(3)Cap size at harvesting (iii)2 - 4 inch
(4)Relative humidity (iv)10 - 12 cm
- A. (1)-(iii), (2)-(iv), (3)-(i), (4)-(ii)
- B. (1)-(ii), (2)-(iv), (3)-(i), (4)-(iii)
- C. (1)-(iv), (2)-(iii), (3)-(ii), (4)-(i)
- D. (1)-(iii), (2)-(i), (3)-(iv), (4)-(ii)
Solution hidden
Log in to view solution →
Q5
mcq
The enzyme which is purified from calf intestine :
- A. Restriction enzymes
- B. DNA ligase
- C. Helicase
- D. Alkaline phosphatase
Solution hidden
Log in to view solution →
Q6
mcq
Solar energy used by green plants for only photosynthesis is :
- A. 3 - 10%
- B. 2 - 8%
- C. 2 - 9%
- D. 2 - 10%
Solution hidden
Log in to view solution →
Q7
mcq
One greenhouse gas contributes 14% of total global warming and another contributes 60%. These are respectively identified as :
- A. CH_4 and CO_2
- B. N_2O and CO_2
- C. CH_4 and CFC
- D. CFC and CO_2
Solution hidden
Log in to view solution →
Q8
mcq
Arrange the correct sequence of ecological hierarchy starting from lower to higher level.
- A. Community → Ecosystem → Landscape → Biome.
- B. Individual Organism → Population → Landscape → Ecosystem.
- C. Population → Organism → Biome → Landscape.
- D. Landscape → Ecosystem → Biome → Biosphere.
Solution hidden
Log in to view solution →
Q9
mcq
The first cell of male gametophyte in angiosperm is __________.
- A. Nucleus
- B. Microspore
- C. Primary Endosperm nucleus
- D. Megaspore
Solution hidden
Log in to view solution →
Q10
mcq
pBR 322, BR stands for :
- A. Plasmid Boliver and Rodriguez
- B. Plasmid Bacterial Recombination
- C. Plasmid Baltimore and Rodriguez
- D. Plasmid Bacterial Replication
Solution hidden
Log in to view solution →
Q11
mcq
A specific place in an ecosystem, where an organism lives and performs its function is :
- A. landscape
- B. habitat
- C. biome
- D. niche
Solution hidden
Log in to view solution →
Q12
mcq
The recessive trait to the dominant trait of yellow cotyledon is :
- A. Green cotyledon
- B. White cotyledon
- C. Axial cotyledon
- D. Wrinkled cotyledon
Solution hidden
Log in to view solution →
Q13
mcq
The scar left by funiculus in the seed is :
- A. Epicotyl
- B. Tegmen
- C. Hilum
- D. Radicle
Solution hidden
Log in to view solution →
Q14
mcq
Which of the following is not a abiotic component of the ecosystem ?
- A. Organic compounds
- B. Bacteria
- C. Inorganic compounds
- D. Humus
Solution hidden
Log in to view solution →
Q15
mcq
Crosses between the plants of the same variety are called :
- A. intravarietal
- B. interspecific
- C. intergeneric
- D. intervarietal
Solution hidden
Log in to view solution →
Q19
short answer
2 marks
Name the enzymes used in Genetic Engineering.
Solution hidden
Log in to view solution →
Q26
short answer
2 marks
What is co-dominance ? Give an example.
Solution hidden
Log in to view solution →
Q27
short answer
2 marks
Draw and label the structure of Embryo sac.
Solution hidden
Log in to view solution →
Q28
short answer
2 marks
Differentiate primary introduction from secondary introduction.
Solution hidden
Log in to view solution →
Q29
short answer
2 marks
What is thermal stratification ? Mention their types.
Solution hidden
Log in to view solution →
Q30
long answer
Various stages of succession are given below. From that rearrange them accordingly. Reed-swamp stage, phytoplankton stage, shrub stage, submerged plant stage, forest stage, submerged free floating stage, marsh meadow stage.
Solution hidden
Log in to view solution →
Q32
short answer
Differentiate coding and non-coding strand.
Solution hidden
Log in to view solution →
Q33
long answer
Define sterilization. How will you sterilize a culture room ?
Solution hidden
Log in to view solution →
Q34
long answer
(a)What is tapetum ? Write its types and function.
OR
(b)Explain Incomplete Dominance with an example.
Solution hidden
Log in to view solution →
Q35
long answer
(a)What is crossing over ? Give the diagrammatic representation of crossing over.
OR
(b)What is single cell protein ? Write its applications.
Solution hidden
Log in to view solution →
Q36
long answer
(a)Explain the basic concepts involved in plant tissue culture.
OR
(b)Explain the different types of xerophytes based on their adaptive characters with examples.
Solution hidden
Log in to view solution →
Q37
long answer
(a)List out the types of Ecosystem with examples.
OR
(b)Non-liquid wastes cause health problems. Give a solution to manage the same.
Solution hidden
Log in to view solution →
Q38
long answer
(a)Explain the modern methods of seed storage.
OR
(b)Tabulate the plant parts and its medicinal use of the following :
(i)Holy basil
(ii)Indian gooseberry
(iii)Indian acalypha
(iv)Vilvam
(v)Veldt grape
Solution hidden
Log in to view solution →
Q39
long answer
(a)What is tapetum ? Write its types and function.
Solution hidden
Log in to view solution →
Q40
long answer
(b)Explain Incomplete Dominance with an example.
Solution hidden
Log in to view solution →
Q41
long answer
(a)What is crossing over ? Give the diagrammatic representation of crossing over.
Solution hidden
Log in to view solution →
Q42
long answer
(b)What is single cell protein ? Write its applications.
Solution hidden
Log in to view solution →
Q43
long answer
(a)Explain the basic concepts involved in plant tissue culture.
Solution hidden
Log in to view solution →
Q44
long answer
(b)Explain the different types of xerophytes based on their adaptive characters with examples.
Solution hidden
Log in to view solution →
Q45
long answer
(a)List out the types of Ecosystem with examples.
Solution hidden
Log in to view solution →
Q46
long answer
(b)Non-liquid wastes cause health problems. Give a solution to manage the same.
Solution hidden
Log in to view solution →
Q47
long answer
(a)Explain the modern methods of seed storage.
Solution hidden
Log in to view solution →
Q48
long answer
(b)Tabulate the plant parts and its medicinal use of the following : (i)Holy basil (ii)Indian gooseberry (iii)Indian acalypha (iv)Vilvam (v)Veldt grape
Solution hidden
Log in to view solution →