Advertisements
Advertisements
प्रश्न
A male plant bearing red flowers was crossed with a female plant bearing yellow flowers. In the F1 generation, all the flowers were orange in colour.
Mention the ratio of red flowers, yellow flowers and orange flowers in the F2 generation.
उत्तर
When heterozygous orange flowers from the F1 generation interbreed, the F2 generation displayed pure parental features. Instead of the conventional 3:1, the Mendelian ratio becomes
| R | y | |
| R | RR Red |
Ry Orenge |
| y | Ry Orenge |
yy yellow |
1 (Red flower) : 2 (Orange flower) : 1 (Yellow flower)
APPEARS IN
संबंधित प्रश्न
Dominant character masks the ______________ characters.
A pea plant which is homozygous for green pods which are inflated [GGII] is crossed with a homozygous plant for yellow pods which are constricted [ggii]. Answer the following questions;
a) Give the phenotype and genotype of the F1 generation.
Which type of pollination has occurred to produce F1 generation?
b) Write the phenotypic ratio of the F2 generation
c) Write the possible combinations of the gametes that can be obtained if two F1 hybrid plants are crossed.
d) State Mendel’s law of ‘Segregation of Gametes’
5) What is the scientific name of the plant which Mendel used for his experiments on inheritance?
Choose the correct answer:
Mendel conducted his hybridization experiments on _______
Choose the correct answer:
If a pea plant with round seeds is selfed and the offspring are in the ratio 3:1, then the plant is _________
Flowers of the garden pea are bisexual and self-pollinated. Therefore, it is difficult to perform a hybridization experiment by crossing a particular pistil with the specific pollen grains. How Mendel made it possible in his monohybrid and dihybrid crosses?
Dominant allele refers to ______.
The inheritance pattern of a gene over generations among humans is studied by the pedigree analysis. Character studied in the pedigree analysis is equivalent to ______.
Law of independent assortment can be explained with the help of ______.
Which of the following characters can be acquired but not inherited?
