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In Which Cross is 3:1 Ratio Obtained?

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प्रश्न

In which cross is 3:1 ratio obtained?
एक पंक्ति में उत्तर
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उत्तर

Monohybrid cross.
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अध्याय 3: Principles of Genetics - Exercise 1 [पृष्ठ २०]

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फ्रैंक Biology Part 2 [English] Class 10 ICSE
अध्याय 3 Principles of Genetics
Exercise 1 | Q 4 | पृष्ठ २०

संबंधित प्रश्न

Differentiate between the following:

Dominance and Recessive


Differentiate between the following:

Monohybrid and Dihybrid


A child has blood group O. If the father has blood group A and the mother has blood group B, work out the genotypes of the parents and the possible genotypes of the other offspring.


How would you find out whether a given tall garden pea plant is homozygous or heterzygous? Substantiate your answer with the help fo Punnett squares.


Explain Mendel’s monohybrid progeny with the help of any one cross.


Differentiate Between  Monohybrid and Dihybrid cross.


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


Genotypic ratio of a monohybrid cross is ______.


Pooja has green eyes while her parents and brother have black eyes. Pooja’s husband Ravi has black eyes while his mother has green eyes and father has black eyes.

a. On the basis of the above given information, is the green eye colour a dominant or recessive trait? Justify your answer

b. What is the possible genetic makeup of Pooja’s brother’s eye colour?

c. What is the probability that the offspring of Pooja and Ravi will have green eyes? Also, show the inheritance of eye colour in the offspring with the help of a suitable cross.

OR

c. 50% of the offspring of Pooja’s brother are green eyed. With help of cross show how this is possible.


In a cross between red coloured and white coloured flowers, when plants with red coloured flowers of F1 generation were self pollinated, plants of F2 generation were obtained in which 75% of plants were with red flowers and 2.5% plants were with white flowers.

Explain the inheritance of traits in the above cross with the help of a flow chart only along with the ratio of plants obtained.


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