Match the following columns:
Column I (Parental species) | Column II (Resulting allopolyploid species) |
a. Raphanus sativus × Brassica oleracea | 1. Nicotiana digluta |
b. Nicotianan tabacum × Nicotiana glutinosa | 2. Raphanobrassica |
c. Triticum aestivum × Secale cerele | 3. Gossypium hirsutum |
d. Gossypium herbaceum × Gossypium raimondii | 4. Triticale |
A. a-2, b-1, c-4, d-3
B. a-1, b-2, c-3, d-4
C. a-4, b-3, c-2, d-1
D. a-3, b-4, c-2, d-1
Answer: Option A
Solution(By Examveda Team)
The correct option is a-2, b-1, c-4, d-3.a) Artificial hybridization of radish (Raphanus sativus) and cabbage (Brassica oleracea) (both 2N = 18) produces a sterile first-generation hybrid with one diploid chromosome set from either parent. Tetraploidization eventually produces a stable, true-breeding hybrid Raphanobrassica.
b) Nicotiana digluta was produced by pollinating a triploid Nicotiana Tabacum plant (2n = 72) with N. glutinosa. N. glutinosa × N. Tabacum = N. digluta.
c) Triticale is a hybrid of wheat (Triticum aestivum) and rye (Secale cerele) first bred in laboratories during the late 19th century in Scotland and Germany. When crossing wheat and rye, wheat is used as the female parent and rye as the male parent (pollen donor).
d) Gossypium hirsutum, also known as upland cotton or Mexican cotton. It is a cross-bred cultivar (Gossypium harbaceum × Gossypium Raimondii) with varying fibre lengths and tolerances to several growing conditions.
Related Questions on Genetics and Plant Breeding
Genetic code was discovered by
A. Khorana and Methaei
B. Flemming and Methaei
C. Holley, Nirenberg and Khorana
D. Holley and Nirenberg
Progeny of breeder seed is referred to as
A. Breeder seed
B. Nucleus seed
C. Foundation seed
D. Certified seed
Molecular basis of organ differentiation depends on the modulation in transcription by
A. RNA pol
B. Transcription factor
C. Anticodon
D. All of the above
The phenomenon of linkage was first observed by
A. Bateson and Punnet
B. Nilson
C. Hugo de Vries
D. Mendel
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