Which of the following is the shortest stage of cell cycle?
A) Metaphase
B) S
C) G1
D) Anaphase
Dihybrid F2 phenotypic ratio is:
A) 3:1
B) 9:3:3:1
C) 1:1:1:1
D) 1:1
In monosomy the chromosome number is:
A) 2n + 1
B) 2n + 2
C) 2n – 1
D) 2n – 2
Plastid inheritance in Mirabilis was discovered by:
A) Correns
B) Altman
C) Winkler
D) Jenkins
Which of the following is developed through mutation?
A) Mohan
B) TR‐8
C) Ganga 101
D) None of these
Sugarcane Breeding Institute is located at:
A) Kanpur
B) Coimbatore
C) Lucknow
D) Chennai
A generative nucleus in the male gametophyte divides _____ to form two male gametes:
A) Mitotically
B) Meiotically
C) Mitotically and Meiotically
D) None of these

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