List of top Plant Sciences Questions

The essential hormone for cell division during germination of seeds is
Among the following statements, which one is unique about meiosis?
The chromosome of hexaploid wheat is 42. The basic chromosome number is?
Sex-linked characters are controlled by gene located primarily on
Which of the following activities is usually NOT performed during RNA processing in a eukaryotic cell?
Thymine is carrying methyl group at carbon number
What are the genotypes breeder will use in his trial for estimation of standard heterosis?
If the chromosome number of a crop is 2n=24, the number of chromosomes in its endosperm will be
While studying the inheritance of seed coat color (yellow vs. green), the segregation for seed coat color will be visible first in:
A-B-D are three genes present in a chromosome, in that order. The map distance between A – B = 5 cm, and B – D = 10 cm. If the observed double cross-over percentage is 0.4, the coefficient of coincidence will be
Transfer RNA is transcribed by
Inbreeding depression will be severe in which of the following species?
About 'lac operon', which of the following statements is NOT correct?
If the mating of two organisms produce a 1:1 phenotypic ratio in the progeny, then the correct parental cross-combination is
Sex-limited and sex-influenced inheritance occur when the sex of the organism affects the phenotype through a gene located on
In plant cell, which of the following organelle produces 70–90% of cellular RNA?
If incompatibility reaction of pollen is governed by the genotype of the plant on which the pollen is produced, then the self-incompatibility is designated as
Which of the following organelles in plant cell has typically uniparental inheritance?
Let us assume that there are four inbred parents, viz., A, B, C and D. Identify the three-way hybrid from the following cross-combinations:
1. AxB, BxC, and CxD
2. (AxB) x C
3. [AxB] x [CxD] x [BxC]
4. [AxB] x [CxD]
Which one of the following is NOT covered by IPR?
The Chairman of the identification committee for release of a crop variety under central variety release committee (CVRC) is
Who was the first Chairperson of PPV&FR Authority, the Headquarter of which is located at New Delhi?
Which one of the following is NOT an appropriate test for investigating viability of seed?
The validity of registration of extant notified variety other than trees and vines is
The first hybrid maize released in India is