In pedigree breeding after F8, homozygous plants are known as
A) Variety
B) Genotype
C) Strain
D) Segregants
Explanation: After F8, homozygous plants obtained in pedigree breeding are referred to as strains.
Which method is generally used to improve specific character of a well-adapted variety?
A) Single seed decent
B) Heterosis breeding
C) Backcross breeding
D) Pedigree breeding
Explanation: Backcross breeding is used to improve a specific character of a well-adapted variety.
Which of the following method is modified form of bulk breeding?
A) Single seed decent method
B) Heterosis breeding
C) Recurrent selection
D) Pedigree breeding
Explanation: Single seed descent is a modified form of bulk breeding.
The main weakness of SSD method is
A) Early generation selection
B) High demand on resources
C) Plant loss
D) None of these
Explanation: The SSD method often results in plant loss during early generations.
Segregating generations in self-pollinated crops can be handled with
A) Pedigree method
B) SSD method
C) Backcross method
D) All of these
Explanation: All of these methods can be applied for handling segregating generations.
Population produced by which selection method has heterogeneity and wider adaptation?
A) Progeny selection
B) Mass selection
C) Bulk method
D) Pedigree selection
Explanation: Bulk method maintains heterogeneity, allowing wider adaptation.
Which method is known as evolutionary methods of breeding?
A) Pedigree methods
B) Bulk methods
C) Mass-pedigree methods
D) Mass selection
Explanation: Bulk methods are often referred to as evolutionary methods of breeding.
Modified pedigree method was given by
A) Harrington
B) Brim
C) Goulden
D) Harlan
Explanation: Harrington suggested the modified pedigree method.
A cross between hybrid with either of its parent is known as
A) Top cross
B) Double cross
C) Test cross
D) Back cross
Explanation: Crossing a hybrid with either of its parents is called backcross.
Basic requirement of back cross programme is/are
A) Recurrent parent
B) Donor parent
C) High heritability of character
D) All of these
Explanation: A backcross program requires recurrent and donor parents and traits with high heritability.
Which of the following method is used for handling segregation generating?
A) Recurrent selection
B) Pureline selection
C) Pedigree selection
D) Mass selection
Explanation: Pedigree selection is suitable for handling segregating generations in breeding.
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