Genetics And Plant Breeding - Study Mode
[#911] The excess of nitrogen supply to plant produces
Correct Answer
(B) Dark green leaves
Explanation
Solution: The excess nitrogen supply to plants produces Dark green leaves. Nitrogen is part of the chlorophyll molecule, which gives plants their green colour and is involved in creating food for the plant through photosynthesis. Lack of nitrogen shows up as general yellowing (chlorosis) of the plant.
[#912] When male and female flowers mature in different time leads to the cross pollination was
Correct Answer
(D) Dichogamy
Explanation
Solution: When male and female flowers mature at different times leads to cross-pollination Dichogamy. Dichogamy is a temporal flowering system in which male and female reproductive organs mature at different times within a single flower or across multiple flowers. It refers to the maturation of anthers and stigma of the same flowers at different times. Dichogamy promotes cross-pollination even in the hermaphrodite species.
[#913] Mendel presented his results in the form of
Correct Answer
(B) Two paper in German language
Explanation
Solution: Mendel presented his results in the form of Two papers in the German language. Mendel first presented his results in two separate lectures in 1865 to the Natural Science Society in Brunn in german language. His paper “Experiments on Plant Hybrids” was published in the society's journal, Verhandlungen des naturforschenden Vereines in Brunn, the following year. He deduced that genes come in pairs and are inherited as distinct units, one from each parent.
[#914] In sporophytic system of self-incompatibility full fertility will result from a cross between
Correct Answer
(D) S 2 S 3 × S 1 S 2
Explanation
Solution: In the sporophytic system of self-incompatibility, full fertility will result from a cross between S 2 S 3 × S 1 S 2 . Sporophytic self-incompatibility (SSI) is a self-pollen recognition system that enforces outcrossing in plants. Recognition in SSI systems is typically controlled by a complex locus (S-locus) with separate genes that determine pollen and stigma specificity.
[#915] Central institute for cotton research located at
Correct Answer
(B) Nagpur
Explanation
Solution: Central institute for cotton research located at Nagpur. Central Institute for Cotton Research (CICR), is a central research institute established in 1976 by the Indian Council of Agricultural Research to promote long-term research efforts in cotton production and provide support and conduct applied research on cotton with the active involvement of State Universities. Its headquarters are located in Nagpur and the other two regional units are located at Coimbatore, Tamil Nadu, and Sirsa, Haryana.