Question

What name has been assigned to the genus produced by a cross between cabbage and radish
A. Secale
B. Bursa pastor
C. Lysogenic Phyll
D. Raphano brassica

Answer 1

Hint: Cultivable plants are plants that are crossed between different species of wild plant to produce viable fertile plants. The produced plants show increased growth, larger fruits and seeds or flowers and are economically useful. They are also resistant to diseases. Several types of economically important are produced through production of hybrids or hybridization.

Complete answer:
The process of hybridization is the process of production of viable plants with important characteristics such as increased growth, fruit production and disease resistance. The plants produced through this method bear the desirable characteristics that are economically important.
The cross between the genus cabbage and radish produces the hybrid Raphano brassica. It is an intergenic hybrid formed between the Brassica and Raphanus and the name is formed by the combination of the two genus.
The cross experiment was performed by Georgi D. Karpechenko, a Soviet agronomist. He used the species using Raphanus sativus and Brassica oleracea because the plants produced a number of seeds. During the cross, the second generation produced allopolyploid individuals that were produced from the result of doubling of chromosome number. As the new species was created from two plants, it was named Raphanobrassica as a new genus.
The different types of plants of the parentage of Raphanobrassica is now known as radiole. This cross experiment was carried out between the cabbages and radish are found to be sterile.

Therefore, the correct option is option D.

Additional information:
The earlier experiments between the cabbage and radish created sterile plants. The cross produced from this experiment produced diploid hybrids as well as allopolyploid hybrids are known as and share the same genus name Raphanobrassica. The other two forms that are fertile are known by informal names such as Raparadish group, the Radiole group and Raphanofortii.

Note: The cross between the genus Raphanus sativus or radish and Brassica oleracea or cabbage is known as Raphanobrassica. It was performed as the cross experiment by Russian agronomist and scientist, Georgi D. Karpechenko. He selected these two plants as the plants are known to produce a large number of seeds.