Pea plant having recessive traits can express its feature only in pure line condition.
What is a pure breeding line of pea plants?
Pea plants have flowers that contain both male and female reproductive parts; if a pea flower is left undisturbed, the male and female gametes from the same flower will combine to produce seeds, the next generation. If the pea always made offspring like itself, Mendel had his true breeding line.
What are the characteristics of pea plant?
The characteristics of a pea plant are:
- Colour of seed (green or yellow)
- Shape of seed (round or wrinkled)
- Colour of pod (green or yellow)
- Shape of pod (constricted or inflated)
- Size of the plant (tall or dwarf)
- Position of flowers (axial or terminal)
- Colour of flower (purple or white)
Which characteristics of pea plant is dominant?
Green pod color is dominant and yellow is recessive. The shape of the pod has two traits – inflated and constricted.
What are the 7 characteristics of peas?
On the next screen, he reveals that there are seven different traits:
- Pea shape (round or wrinkled)
- Pea color (green or yellow)
- Pod shape (constricted or inflated)
- Pod color (green or yellow)
- Flower color (purple or white)
- Plant size (tall or dwarf)
- Position of flowers (axial or terminal)
What are pure breeding strains?
A group of identical individuals that always produce offspring of the same phenotype when intercrossed.
What is a pure breeding genotype?
True bred organisms will have a pure genotype (genetic expression of a trait) and will only produce a certain phenotype. True bred is sometimes also called pure bred. If you take two true breeding pea plants – say, one that is yellow and one that is green – and cross them, you would end up with only yellow offspring.
Which characteristics of pea plant was not used by Mendel?
Mendel chose Pisum sativum (pea plant) for his experiments. He selected seven traits of pea plant. It excludes plant colour. He chose characters like flower colour, flower position, stem length, seed shape, seed colour, pod shape and pod colour.
What are the 7 characteristics of plants?
The seven characteristics of plants are nutrition, respiration, movement, excretion, growth, reproduction, and Sensitivity.
Why did Mendel choose pea plant for his experiment Class 10?
Mendel selected pea plants for his experiments due to their easily detectable, contrasting characters.
Which pair of letters represent the pure line dominant trait?
A dominant allele is denoted by a capital letter (A versus a). Since each parent provides one allele, the possible combinations are: AA, Aa, and aa. Offspring whose genotype is either AA or Aa will have the dominant trait expressed phenotypically, while aa individuals express the recessive trait.
Which of the following is not a dominant character of pea plant?
So, the correct option is ‘Pod colour – Yellow‘.
Which one of the following character is recessive in case of pea plant?
Detailed Solution. The correct answer is Wrinkled seed. Wrinkled seed is a recessive characteristic in a pea plant.
How many characters in pea plants were selected by Mendel?
7 characters
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.
What is pea plant called?
pea, (Pisum sativum), also called garden pea, herbaceous annual plant in the family Fabaceae, grown virtually worldwide for its edible seeds.
What are the 7 traits Mendel studied on pea plants?
The characteristics included plant height, seed texture, seed color, flower color, pea-pod size, pea-pod color, and flower position.
What is meant by pure line?
A pure line means those breeds of organisms that have been generated through repeated self fertilization and have become homozygous for a particular trait. The trait is passed on to progeny if bred with another true breeding organism.
What are examples of pure breeding?
An example of true breeding is that of the Aberdeen Angus cattle. The cattle have been black for many generations, which is an indication that such trait passed on from many generations remains pure. Another example is the mating between two dogs of the same breed.
What is an example of purebred?
Purebred is defined as an animal or human which is the result of unmixed breeding. An example of purebred is a cat whose parents were both Siamese. Belonging to a recognized breed with characters maintained through generations of unmixed descent.
How do you create a pure breeding line?
When two individuals that are homozygous for the same alleles are crossed, all of their offspring will all also be homozygous. The continuation of such crosses constitutes a true breeding line or strain.
What is true breeding line Class 10?
True breeding lines in the case of plants are those plants that have been generated through repeated self-pollination. These plants become homozygous for a particular trait. This trait is then passed on to future generations if bred with another true-breeding plant.