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प्रश्न
Why did Mendel select pea plants for his experiment?
उत्तर १
Mendel selected pea plants for his experiment because of the following reasons :
- A pea plant has many contrasting characters.
- Self-fertilization takes place in pea plants and so it is possible to get a pure line of traits.
- Flowers are bisexual and hermaphrodite. Therefore, cross-pollination is achieved easily.
उत्तर २
- The pea plant is self-pollinating and so it is very easy to raise pure breeding individuals.
- It has a short life span, as it is annual.
- It is easy to cross-pollinate.
- It has deeply defined contrasting characters.
- The flowers are bisexual.
संबंधित प्रश्न
A pea plant pure for yellow seed colour is crossed with a pea plant pure for green seed colour. In the F1 generation all pea plants were with yellow seeds. Which law of Mendel is applicable?
State the three Mendel’s laws of inheritance.
(a) State and explain the law of dominance as proposed by Mendel.
(b) How would phenotypes of monohybrid F1 and F2 progeny showing incomplete dominance in Snapdragon and co-dominance in human blood group be different from Mendelian monohybrid F1 and F2 progeny? Explain.
Define the following:
Phenotype
Predict the genotype and phenotype of the following cross in pea.
TT x Tt
(Capital letters show dominance)
Choose the correct answer:
If a homozygous tall plant is crossed with a heterozygous tall plant, the proportion of tall progeny would be ____________
Choose the correct answer:
The allele which masks the effect of its complement is _______
Define Mendel’s law of segregation.
Give Reason:
In the honey bee, the female is diploid and the male is haploid.
The crossing of F1 to homozygous recessive parent is called ______.
The genes controlling the seven pea characters studied by Mendel are now known to be located on how many different chromosomes?
A heterozygous violet-flowered pea plant is crossed to another homozygous violet- flowered pea plant. What percent of the progeny plants will have the recessive trait, i.e., white flowers?
Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross will be ______.
Read the following and answer from given below:
According to Mendel, one gene controls the expression of one character only. The ability of a gene to have multiple phenotypic effects because it influences a number of characters are an exception. The gene has multiple phenotypic effects because its ability to control two or more characters can be seen in cotton. In cotton, a gene for the lint also influences the height of the plant, size of the ball, number of ovules, and viability of seeds.
Which of the following is an example of a gene with multiple phenotypic effects?
Give the pair of contrasting traits of the following characters in the pea plant and mention which is dominant and recessive
- yellow seed
- round seed
Mendel selected pea as material for his experiments because:
Which one of the given statements in incorrect:
