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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). - Biology

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प्रश्न

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?

पर्याय

  • 1 : 1 : 1: 1

  • 9 : 3 : 3 : 1

  • 3 : 1

  • 1 : 1

MCQ
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उत्तर

1 : 1

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

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एनसीईआरटी एक्झांप्लर Biology [English] Class 12
पाठ 5 Principle of Inheritance and Variation
MULTIPLE CHOICE QUESTIONS | Q 16. | पृष्ठ ३२

संबंधित प्रश्‍न

Two heterozygous parents are crossed. If the two loci are linked, what would be the distribution of phenotypic features in the F1 generation for a dihybrid cross?


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.


What is the dihybrid cross ratio?

Complete the following sentence with appropriate word:

_______ is the ratio of dihybrid cross.


Complete the following sentence with appropriate word:

A character that is suppressed is _________.


Multiple Choice Question

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


The physical expression of a gene is called ______.


Explain with an example the inheritance of the dihybrid cross. How is it different from monohybrid cross?


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


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


Explain the law of dominance in a monohybrid cross.


In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that ______.


A dihybrid condition is ______.


Mendel’s last law is ______.


In a dihybrid cross AABB x aabb, F2 progeny of AABB, AABb, AaBB and AaBb occurs in the ratio of ______.


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.


Which of the following statement is not correct for two genes that show 50% recombination frequency?


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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