A. Norin 10 (Rht genes)
B. Taichung Native 1 (TN 1)
C. Norin 10 and Taichung Native 1
D. ppd1
E. ppd2
Choose the correct answer from the options given below:
Key Varieties for Semidwarf Crops
The development of semidwarf varieties in major cereal crops like wheat and rice was a significant advancement in agriculture. This involved specific, naturally occurring or induced mutations that reduced plant height without compromising yield.
Wheat Semidwarf Development
Norin 10 is a historically important wheat variety developed in Japan. It possesses reduced height characteristics due to mutations in the Rht (Reduced height) genes. This variety was crucial for breeding modern, high-yielding, semidwarf wheat cultivars worldwide.
Rice Semidwarf Development
Taichung Native 1 (often abbreviated as TN 1) is a landmark semidwarf rice variety. Developed in Taiwan, it introduced the desired short stature trait into rice breeding programs, particularly contributing to the Green Revolution in Asia. It resulted from a natural mutation.
Conclusion on Semidwarf Varieties
The creation of semidwarf wheat relied heavily on the genetic contributions from Norin 10 (specifically its Rht genes), while the development of semidwarf rice was significantly advanced by Taichung Native 1. Therefore, the combination of these two specific varieties (C) is essential for understanding the development of semidwarf wheat and rice.
The correct option is C, encompassing both Norin 10 for wheat and Taichung Native 1 for rice.
Similar Questions
- Which of the following is not a key feature of Basmati Rice?
- In case of resistance, the rate of reproduction of a plant pathogen will be:
- Backcross breeding method is useful for the improvement of:
- As per Hardy Weinberg Law, in a random mating population what is the frequency of AA genotypes from a cross of Aa (2pq) × Aa (2pq)?
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Horizontal resistance is durable as it is non-race specific.
Reason R: Race specific resistance puts pressure on the pathogen to evolve more virulent races.
In the light of the above statements, choose the most appropriate answer from the options given below - Arrange the order of events in the production of the phenotype by a gene.
A. Protein
B. Phenotype
C. Gene
D. RNA
Choose the correct answer from the options given below: - Arrange the different stages of seed production in a sequence.
A. Certified Seed
B. Breeder Seed
C. Nucleus Seed
D. Foundation Seed
Choose the correct answer from the options given below: - Characteristic features of mitotic metaphase are ______
A. Each chromosome is unpaired
B. 2n chromosomes are seen
C. Each bivalent has four chromatids
D. Centromeres of all the chromosomes lie on the equatorial plate
E. Homologus chromosomes form bivalents
Choose the correct answer from the options given below: - Match the LIST-I with LIST-II
LIST-I
Chromosomal aberrationsLIST-II
Chromosome numberA. Nullisomic I. 2n + 1 B. Monosomic II. 2n + 2 C. Trisomic III. 2n - 2 D. Tetrasomic IV. 2n - 1
Choose the correct answer from the options given below: - Match the LIST-I with LIST-II
LIST-I
ScientistLIST-II
DiscoveryA. Yule I. Mitosis B. Watson & Crick II. Multiple factor hypothesis C. Jacob & Monod III. Double helical structure of DNA D. Fleming IV. Operon concept
Choose the correct answer from the options given below:
Important Questions from Miscellaneous
- Which of the following relationships is/are not true?
(A). Most probable velocity = $\sqrt{\frac{2RT}{M}}$
(B). PV = $\frac{3}{2}kT$
(C). Compressibility factor Z = $\frac{pV}{nRT}$
(D). Average kinetic energy of gas = $\frac{1}{2}kT$
Choose the correct answer from the options given below - Match List-I with List-II
List-I List-II Electronic Configuration First Ionisation energy (kJ mol$^{-1}$) (A). ns$^2$ (I). 2100 (B). ns$^2$np$^1$ (II). 1400 (C). ns$^2$np$^3$ (III). 800 (D). ns$^2$np$^6$ (IV). 900
Choose the correct answer from the options given below: - The shielding constant of a 2p electron (calculated using Slater's rules) is
- Match List-I with List-II
List-I List-II Spectroscopy Property (A). Raman (I). Polarizability (B). FTIR (II). Dipole Moment (C). UV-Visible (III). Absorbance (D). NMR (IV). Spin
Choose the correct answer from the options given below: - The structure of protein comprises of:
(A). Primary structure of protein is associated with amino acids
(B). Secondary structure of protein is associated to peptides
(C). Tertiary structure of protein is associated with polypeptide chains
(D). Quaternary structure of protein is associated with polypeptide chains
Choose the correct answer from the options given below:
