Bread wheat is:
A) Haploid
B) Diploid
C) Autohexaploid
D) Auto-allopolyploid
Bulk population breeding is suitable for:
A) Fruit crops
B) Vegetable
C) Small grains
D) Flower crops
Callus is:
A) An undifferentiated mass of cells
B) A gamete
C) A tissue
D) A modification of leaf
Characteristic feature of xerophytes is:
A) Long taproot
B) Leaves and stem with thick cuticle
C) Shrunken stomata
D) All of the above
Characteristic feature of the hydrophytes is:
A) Reduced protective tissues
B) Feebly developed root system
C) Spongy stem
D) All the above
Chromosomes which pair at meiotic prophase and are similar in size, shape and number of genes are known as:
A) Homologous
B) Isocentric
C) Isochromosome
D) Acentric
CIMMYT is located at:
A) Mexico
B) England
C) Spain
D) Nigeria

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