Advertisements
Advertisements
प्रश्न
उत्तर
According to the law of independent assortment when there are two pairs of contrasting characters, the distribution of the members of one pair into the gametes is independent of the distribution of the other pair.
Based on dihybrid ratio of 9:3:3:1 in F2 generation, Mendel observed that when a plant with two dominant alleles was crossed with another having the corresponding recessive alleles it was possible to obtain new combinations of characters where a plant had one dominant and the other recessive allele. These were new recombinations were not present in either parent or F1 generation.
APPEARS IN
संबंधित प्रश्न
9 : 3 : 3 : 1 ratio is due to ______
Identify the percentage of recombinants in F2 generation in the following case.
In Morgan's experiment with Drosophila, the yellow-bodied white-eyed female was crossed with a brown-bodied red-eyed male and their F1 progeny were intercrossed.
In heterozygous condition, both the alleles are expressed in ______
The test cross is used to determine the ______.
Mendel studied interitance of seven pairs of traits in pea which can have 21 possible combinations. If you are told that in one of these combinations, independent assortment is not observed in later studies, your reaction will be.
Mendel’s law of independent assortment does not hold true for the genes that are located closely on ______.
If linkage was known at the time of Mendel then which of the following laws, he would not have been able to explain?
What does the progeny of a tall plant with round seeds and a short plant with wrinkled seeds look like?
Read the following and answer from given below:
Prashant wanted to find the genotype of a pea plant bearing purple coloured flowers in his kitchen garden. For this, he crossed purple-flowered plants with white-flowered plants. As a result, all plants which were produced had purple flowers only. Upon selfing these plants, 75 purple flower plants and 25 white flowers plants were produced. Now, he can determine the genotype of a purple-flowered plant by crossing it with a white-flowered plant.
The character i.e., the purple colour of the flowers that appeared in the first filial generation is called ______
