What happened when Mendel crossed true-breeding purple flowers with white flowers?

HomeWhat happened when Mendel crossed true-breeding purple flowers with white flowers?
What happened when Mendel crossed true-breeding purple flowers with white flowers?

When Mendel crossed true-breeding, purple- flowered plants with true-breeding, white- flowered plants, the first generation produced all purple-flowered plants. Mendel got similar results for the other traits he studied. Next, Mendel allowed the first generation of plants to self pollinate.

Q. When true breeding pea plants with purple flowers are crossed to plants that have white flowers?

– 4. When true breeding pea plants with purple flowers are crossed to plants that have white Short flowers, all the offspring produce purple flowers. When true breeding tall plants are crossed to short plants, all the offspring are tall.

Q. What is the offspring of a true-breeding white flowering plant?

15 Cards in this Set

The prefix mono- means “one.” How does this apply to the key term monohybrid cross?Involves one pair of contrasting traits.
Describe the offspring of a true-breeding white-flowering plant.Cross-breeding two white flowers it would probably be white flowers.

Q. What are the factors passed from parent to offspring called?

Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents.

Q. Are purple flowers dominant or recessive?


TraitDominant ExpressionRecessive Expression
Color of flower (P)PurpleWhite
Form of ripe pods (I)InflatedConstricted
Color of unripe pods (G)GreenYellow
Position of flowers (A)AxialTerminal

Q. What happens when you cross two true-breeding plants?

When true-breeding, or homozygous, individuals that differ for a certain trait are crossed, all of the offspring will be heterozygous for that trait. If the traits are inherited as dominant and recessive, the F1 offspring will all exhibit the same phenotype as the parent homozygous for the dominant trait.

Q. What percent of the F1 off spring will have purple flowers if you cross a homozygous purple flowered plant with a white flowered plant show all work?

The F1 generation is 100% Pp. The F2 generation is 25% PP (homozygous dominant, purple flowers), 50% Pp (heterozygous, purple flowers), and 25% pp (homozygous recessive, white flowers).

Q. What is the probability of the plants with purple flowers?

Checking the probability of fusion between the gametes produced by two plants crossed using Punnet Square method, it is seen that 75% plants will have at least one dominant allele (P) and thus will bear purple flowers. Only 25% plants will have recessive allele in homozygous state (pp).

Q. What would be the probability to have a heterozygous purple flower?

Two pea plants, both heterozygous for flower color, are crossed. The offspring will show the dominant purple coloration in a 3:1 ratio.

Q. Which Mendel generations were allowed to self pollinate?

Mendel allowed the first-generation plants to self-pollinate. Figure 5 also shows what happened when a first-generation plant with purple flowers was allowed to self-pollinate. As you can see, the recessive trait for white flowers reappeared in the second generation.

Q. What results did Mendel get when he allowed the first generation plants to self-pollinate?

He allowed the F1 plants to self-fertilize and found that 705 plants in the F2generation had violet flowers and 224 had white flowers. This was a ratio of 3.15 violet flowers to one white flower, or approximately 3:1.

Q. What are the characters Mendel selected for his experiment on pea plant?

There were 7 characters of the pea plant which were selected by Mendel for the experiments. The characters which were chosen by Mendel for his study were stem height, flower colour, flower position, pod shape, pod colour, seed shape, seed colour. All these characters belong to different chromosomes in the pea plant.

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