Genetics And Plant Breeding MCQ

Test your knowledge with important Genetics And Plant Breeding MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Genetics And Plant Breeding MCQs at Bissoy

• Emusculation means
  ক

  Removal of anther

  খ

  Removal of gymanasium

  গ

  Both A and B

  ঘ

  None of these
• The terms recon, muton and cistron were coined in 1957 by
  ক

  Morgan

  খ

  Muller

  গ

  Benzer

  ঘ

  Watson
• Production of breeder seed in requires on isolation distance of
  ক

  20 m

  খ

  50 m

  গ

  40 m

  ঘ

  30 m
• Development of the seed without sexual process is
  ক

  Apomixix

  খ

  Parthogenesis

  গ

  Polyembryony

  ঘ

  Budding
• Micronutrient are elements which are
  ক

  Required by plants in small quantities

  খ

  Which required by plants in large quantities

  গ

  Not at all required by plants

  ঘ

  None of the above
• The relative humidity maintained in germination room is
  ক

  70

  খ

  85

  গ

  75 ± 2

  ঘ

  95 ± 2
• The histone proteins which are highly conserved is
  ক

  H₁, H₂, H₃, H₄

  খ

  H_2a, H_2b, H₃, H₄

  গ

  H₁, H₃, H₄

  ঘ

  H₁, H_2a, H_2b
• During mitosis, chromosomal DNA duplication takes place in
  ক

  Interphase

  খ

  Prophase

  গ

  Metaphase

  ঘ

  Anaphase
• Sugarcane breeding institute, Coimbatore established in
  ক

  1945

  খ

  1944

  গ

  1942

  ঘ

  1946
• Which one is the sequence of Pribnow Box?
  ক

  TAATTA

  খ

  TATAAT

  গ

  TATATT

  ঘ

  AATATT
• During hybdrid development using male sterility R line is used to
  ক

  Make a idotypic plant

  খ

  Bring fertility in male sterile plants

  গ

  Make a plant resistant to specific trait

  ঘ

  Increase the yield
• Opaque-2 maize composition are richer as compared to normal maize in
  ক

  Lysin

  খ

  Tryptophan

  গ

  Tryptophan and Lysin both

  ঘ

  Protein
• Who made first intergeneric cross between bread wheat and rye
  ক

  Muntzing (1951)

  খ

  Rimpau (1928)

  গ

  Russell (1963)

  ঘ

  Nelson (1973)
• The chemical used to double the chromosome number is
  ক

  EMS

  খ

  MMS

  গ

  NO

  ঘ

  colchicine
• The C₄ -plants differ from the C₃ -plants with reference to the
  ক

  Compound that accept CO₂ in carbon assimilation

  খ

  Type of the first stable product produced

  গ

  Number of ATP's required to from starch

  ঘ

  All of the above
• Hyaloplasm means
  ক

  The substance except nucleus surrounded by plasmalemma

  খ

  The cytoplasm with membranous structure

  গ

  The cytoplasm without the membranous structures

  ঘ

  The cytoplasm with nucleus
• Disease resistance in barley is
  ক

  Quantitative characteristic

  খ

  Qualitative characteristic

  গ

  Both A and B

  ঘ

  None of the above
• Hybrid vigour is exploited maximum in
  ক

  Wheat

  খ

  Potato

  গ

  Cotton

  ঘ

  Maize
• Mendok is used for inducing male sterility in:
  ক

  Potato

  খ

  Helianthus

  গ

  Gossypium

  ঘ

  Zea mays
• Superiority of hybrid over both of its parents is called
  ক

  Dominance

  খ

  Heterosis

  গ

  Hybridisation

  ঘ

  Over dominance
• A micronutrient is one which?
  ক

  Is present in small quantity in soil

  খ

  Is less important than macronutrients

  গ

  Can be detected by microscope

  ঘ

  Is required in very small amount but is as important as a major element
• Which one of the following crops is often cross-pollinated?
  ক

  Maize

  খ

  Groundnut

  গ

  Rice

  ঘ

  Sorghum
• Mitotic apparatus consists of
  ক

  Mitotic spindle

  খ

  Aster ray along the centriole

  গ

  Matrix

  ঘ

  All of the above
• The number of single crosses will be equal to
  ক

  $$\frac{{{\text{n}}\left( {{\text{n}} - 1} \right)}}{2}$$

  খ

  $$\frac{{{\text{n}}\left( {{\text{n}} - 1} \right)\left( {{\text{n}} - 2} \right)}}{8}$$

  গ

  $$\frac{{{\text{n}}\left( {{\text{n}} - 1} \right)\left( {{\text{n}} - 2} \right)\left( {{\text{n}} - 3} \right)}}{8}$$

  ঘ

  $$\frac{{{\text{n}}\left( {{\text{n}} + 1} \right)\left( {{\text{n}} + 2} \right)}}{4}$$
• Changes in population genetics in which extreme values for a trait are selected over intermediate values, is known as
  ক

  Stabilizing selection

  খ

  Directional selection

  গ

  Disruptive selection

  ঘ

  Positive selection
• The process double fertilisation was discovered by
  ক

  Strasburger

  খ

  Robert Brown

  গ

  de Vries

  ঘ

  Nawaschin
• Pure line selection is
  ক

  A method of accumulating favourable alleles

  খ

  Used to improve self-pollinated crop

  গ

  Used to improve cross-pollinated crop

  ঘ

  All of the above
• The source of 'A' genome in wheat is
  ক

  T. urartu

  খ

  T. dicoccoides

  গ

  T. durum

  ঘ

  T. turgidum
• Cell without cell wall are known as
  ক

  Protoplasts

  খ

  Proplastids

  গ

  Chloroplast

  ঘ

  Leucoplast
• Breeding method for transferring monogenic disease resistance from wild species to improved variety of wheat is
  ক

  Pedigree method

  খ

  Bulk method

  গ

  Backcross method

  ঘ

  Pure line selection