Heterobeltiosis is estimated over the:
A) Mid-parent
B) Better parent
C) Popular variety
D) Single cross
Highest adaptability is observed in:
A) Single cross
B) Double cross
C) Threeway cross
D) Multiple cross
Heterosis can be fully exploited in the form of:
A) Hybrids
B) Composites
C) Synthetics
D) Multilines
Single cross hybrids are used in:
A) Development of three way cross hybrids
B) Development of double cross hybrids
C) Prediction of double cross performance
D) All of the above
Top cross method was first suggested for evaluation of inbreds by:
A) Richey
B) Singleton and Nelson
C) Davis
D) Jenkins
The term useful heterosis was first used by:
A) Shull
B) Hull
C) Meredith and Bridge
D) Simmonds
Inbreeding of cross pollinated species leads to increase in:
A) Homozygosity
B) Heterozygosity
C) Population mean
D) All of the above
Outbreeding leads to reduction in:
A) Heterozygosity
B) Homozygosity
C) Population mean
D) None of the above

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