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In snapdragon, a cross between true bree...

In snapdragon, a cross between true breeding red flowers (RR) and true breeding white flowers (rr) showed offspring with pink flowers: The appearnce of pink flowers is not known as blending. Why ?

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In snapdragon, a cross between true breeding red flowers (RR) and true breeding white flowers (rr) showed offspring with pink flowers: Name the kind of interaction seen.

A plant bearing yellow flowers was crossed with a plant bearing red flowers. The F_1 progeny showed orange flowers. What is the inheritance pattern followed ?

Questions based on paragraph A geneticist made a cross between two pea plants having axillary flowers (AA) and round shaped seeds (RR) with plants having terminal flowers (aa) and wrinkled seeds (rr). In F_1 generation, he obtained plants with axillary flowers and round shaped seeds. But in F generation, he obtained new combinations along with parental combinations. Write the genotypic ratio of F_2 generation?

Questions based on paragraph A geneticist made a cross between two pea plants having axillary flowers (AA) and round shaped seeds (RR) with plants having terminal flowers (aa) and wrinkled seeds (rr). In F_1 generation, he obtained plants with axillary flowers and round shaped seeds. But in F generation, he obtained new combinations along with parental combinations. Write the phenotypic ratio of F_2 generation?

Questions based on paragraph A geneticist made a cross between two pea plants having axillary flowers (AA) and round shaped seeds (RR) with plants having terminal flowers (aa) and wrinkled seeds (rr). In F_1 generation, he obtained plants with axillary flowers and round shaped seeds. But in F_2 generation, he obtained new combinations along with parental combinations. Which new combinations would be formed in F_2 apart from the parental combination?

Questions based on paragraph A geneticist made a cross between two pea plants having axillary flowers (AA) and round shaped seeds (RR) with plants having terminal flowers (aa) and wrinkled seeds (rr). In F_1 generation, he obtained plants with axillary flowers and round shaped seeds. But in F generation, he obtained new combinations along with parental combinations. Mention the genotype of plants in F_2 generation obtained by geneticist.

Questions based on paragraph A geneticist made a cross between two pea plants having axillary flowers (AA) and round shaped seeds (RR) with plants having terminal flowers (aa) and wrinkled seeds (rr). In F_1 generation, he obtained plants with axillary flowers and round shaped seeds. But in F_2 generation, he obtained new combinations along with parental combinations. Write the gametes formed by the individual in F_1 generation.

In peas, tallnessis dominant over dwarfness, and red colour of flowers is dominant over the white . colour. When a'tall plant bearing red flowers was pollinated with- a dwarf planfc bearing white flowers, the different phenotypic groups were obtained in the progeny in numbers mentioned against them: Tall, Red = 138 Tall, White = 132'Dwarf, Red =136 Dwarf,White =128 Mention the genotypes of the two parents and of the four offspring types.

Conduct a cross between a homozygous pea plant for purple axial flowers and a homozygous pea plant for white terminal flowers: Find out the types of progeny in F_2 and the proportion in which they occur.

Some varieties of wheat are known as spring wheat while others are called winter wheat Former variety is sown, and planted in spring and It is harvested by the end of the same season. However, winter varieties, if planted in spring, fail to flower or produce mature grains within aspan of a flowering season. Explain, why? Mineral nutrition.

CHETANA PUBLICATION-INHERITANCE AND VARIATION-Exercise
  1. In snapdragon, a cross between true breeding red flowers (RR) and true...

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  2. Phenotypic ratio of incomplete dominance in Mirabilis jalapa.

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  3. In dihybrid cross, F2 generation offsprings show four different phenot...

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  4. A cross between an individual with unkonwn genotype for a trait with r...

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  5. When phenotypic and genotypic ratios are the same, then it is an examp...

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  6. If the centromere is situated near the end of the chromosome, the chro...

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  7. Chromosomal theory of inheritance was proposed by ..........

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  8. If the genes are located in a chromosome as p-q-r-s-t, which of the fo...

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  9. Find the mis match pair :

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  10. A colourblind man maries a woman, who is homozygous for normal colour ...

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  11. Mendel performed experiment on .............

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  12. Which of the follwoing trait is dominant in Pisum sativum?

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  13. A cross between an individual with unkonwn genotype for a trait with r...

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  14. In dihybrid cross, F2 generation offsprings show four different phenot...

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  15. Emasculation is...........

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  16. When phenotypic and genotypic ratios are the same, then it is an examp...

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  17. A pea with yellow and round seeds is crossed with another pea plant wi...

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  18. When a single gene produces two effects and one of it is lethal then t...

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  19. When two genes control a single character and have cumulative effect t...

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  20. Genes located on the same locus but show different expression,

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  21. If the centromere is situated near the end of the chromosome, the chro...

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