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What Do You Understand by Monohybrid Cross? - Biology

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प्रश्न

What do you understand by monohybrid cross?
एका वाक्यात उत्तर

उत्तर

Monohybrid cross is one where the parents used for hybridization differ in only one pair of contrasting characters or alleles.

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पाठ 3: Principles of Genetics - Exercise 1 [पृष्ठ ३५]

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फ्रँक Biology [English] Class 10 ICSE
पाठ 3 Principles of Genetics
Exercise 1 | Q 10 | पृष्ठ ३५

संबंधित प्रश्‍न

Given below are the F2 – phenotypic ratios of two independently carried monohybrid crosses :
(i) 1 : 2 : 1
(ii) 3 : 1
Mention what does each ratio suggest.


Mention whether the cross is a monohybrid or dihybrid.


Name the conditions when both the alleles are identical?


A pure tall plant (TT) is crossed with the pure dwarf plant (tt), what would be the F1 and F2 generations? Explain.


Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in the F1 generation are then selfed to produce F2 generation of pea plants.

What do the plants of the F1 generation look like?


Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in the F1 generation are then selfed to produce F2 generation of pea plants.

What is the ratio of tall plants to dwarf plants in the F2 generation?


Genotypic ratio of a monohybrid cross is ______.


A Monohybrid cross is ______


In a monohybrid cross of plants with red and white flowered plants, Mendel got only red-flowered plants. On self-pollinating these F1 plants got both red and white flowered plants in 3:1 ratio. Explain the basis of using RR and rr symbols to represent the genotype of plants of parental generation.


In a plant tallness is dominant over dwarfness and red flower is dominant over white. Starting with the parents work out a dihybrid cross. What is standard dihybrid ratio? Do you think the values would deviate if the two genes in question are interacting with each other?


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