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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

In the F2 generation of a Mendelian dihybrid cross the number of phenotypes and genotypes are ______.

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प्रश्न

In the F2 generation of a Mendelian dihybrid cross the number of phenotypes and genotypes are ______.

विकल्प

  • phenotypes - 4; genotypes - 16

  • phenotypes - 9; genotypes - 4

  • phenotypes - 4; genotypes - 8

  • phenotypes - 4; genotypes - 9

MCQ
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उत्तर

In the F2 generation of a Mendelian dihybrid cross the number of phenotypes and genotypes are phenotypes - 4; genotypes - 9.

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अध्याय 5: Principle of Inheritance and Variation - MULTIPLE CHOICE QUESTIONS [पृष्ठ ३२]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
अध्याय 5 Principle of Inheritance and Variation
MULTIPLE CHOICE QUESTIONS | Q 17. | पृष्ठ ३२

संबंधित प्रश्न

Filling the blank based on the given relationship.

3 : 1 Monohybrid : : 9 : 3 : 3 : 1 : ______


Explain Mendel’s dihybrid ratio with the help of any one cross.


Explain dihybrid cross.

State Mendel’s law of Independent Assortment.


Multiple Choice Question

When two individuals differing in at least one character are crossed, the process is known as:


Under which conditions does the law of independent assortment hold good and why?


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?


A cross between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?


Two genes ‘A’ and ‘B’ are linked. In a dihybrid cross involving these two genes, the F1 heterozygote is crossed with homozygous recessive parental type (aa bb). What would be the ratio of offspring in the next generation?


From the list given below, select the character which can be acquired but not inherited


How is the sex of a newborn determined in humans?


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.


When two hybrids rrTt and Rrtt are gassed, the phenotype ratio of offspring should be:


Independent assortment means:


In the Mendelian dihybrid cross when heterozygous round yellow is self grossed, round green offsprings are represented by the genotype.


Mendel's law of independent assortment is based on F2 ratio of:


Describe the dihybrid cross upto F2 generation as conducted by Gregor Mendel using pure lines of Garden Pea for characters-seed shape and seed colour.


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