Advertisements
Advertisements
Question
Sahil performed an experiment to study the inheritance pattern of genes. He crossed tall pea plants (TT) with short pea plants (tt) and obtained all tall plants in F1 generation.
When F1 plants were cross-pollinated with plants having tt genes, a total of 800 plants were produced. How many of these would be tall, medium height or short plants? Give the genotype of F2 generation.
Solution
- In the cross between Tt X tt, 400 Tall (Tt) and 400 short (tt) plants will be produced.
- 1 Tt : 1 tt
APPEARS IN
RELATED QUESTIONS
Give Technical Term:
The ratio of offspring on F2 generation in a dihybrid cross.
Complete the following sentence with appropriate word:
A character that is suppressed is _________.
Explain with an example the inheritance of the dihybrid cross. How is it different from monohybrid cross?
In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seed pant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in the F1 generation?
The genotype of a plant showing the dominant phenotype can be determined by
Which Mendelian idea is depicted by a cross in which the F1 generation resembles both the parents
Name the seven contrasting traits of Mendel.
What is back cross?
Define Genetics.
What are the reasons for Mendel’s successes in his breeding experiment?
Identify the statementls that is/are NOT the correct reason/s for Mendel's success in his hybridization experiments.
i. Each factor controlled the single trait and is located on separate chromosomes.
ii. In the pea plant, contrasting characters can be easily recognized.
iii. Mendel carefully recorded the number of plants of each type and expressed his results as ratios.
iv. Mendel performed biochemical assays for identifying the position of 'factors' on chromosome.
A cross between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?
In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that ______.
Mendel’s Law of independent assortment holds good for genes situated on the ______.
Assertion: When the two genes in a dihybrid cross are situated on the same chromosome, the proportion of parental gene combinations is much higher than the nonparental type.
Reason: Higher parental gene combinations can be attributed to crossing over between two genes.
Sahil performed an experiment to study the inheritance pattern of genes. He crossed tall pea plants (TT) with short pea plants (tt) and obtained all tall plants in F1 generation.
Give a reason why only tall plants are observed in F1 progeny.
Sahil performed an experiment to study the inheritance pattern of genes. He crossed tall pea plants (TT) with short pea plants (tt) and obtained all tall plants in F1 generation.
When F1 plants were self-pollinated, a total of 800 plants were produced. How many of these would be tall, medium height or short plants? Give the genotype of F2 generation.
In the Mendelian dihybrid cross when heterozygous round yellow is self grossed, round green offsprings are represented by the genotype.
The Law of independent assortment is applicable for the traits which ______
The ratio of 9 : 3 : 3 : 1 is due to:
