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To find out the unknown genotype of a vi...

To find out the unknown genotype of a violet flowered pea plant a researcher done the following cross. Observe the diagram and answer the following questions.

a. What would be the above cross called ?
b. Can you determine the unknown genotype of violet flowered parent by drawing Punnet swuare ?

Text Solution

Verified by Experts


Genotype of unknown parent is Ww(heterozygous).
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A yellow colour flower plant indicated by YY is crossed with white color flower plant denoted by yy. (a) following the Mendelian inheritance pattern , what would be the flower color is first filial generation ? (b) Which Mendelian principle is illustrated in this cross ? (c) Derive the cross and state the phenotypic ratio of yellow flowers to white flowers in F_2 generation ?

(i) Read the following content and answer the questions below: Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in F_1 eneration are then cross-bred to produce F_2 generation of pea plants. (a) What do the plants of F_1 generation look like? (b) What is the ratio of tall plants to dwarf plants in F_1 generation? (c) Which type of plants were missing in F_1 generation but reappeared in F_2 generation? (ii) Why is the sino-atrial mode called the pacemaker of heart ?

Knowledge Check

  • (i) Read the following content and answer the question below : Pure-bred tall pea plants are first crossed with pure-bred dwar pea plant. The pea plants obtained in F_1 generation are then cross-bred to produce F_2 generation of pea plants. (a) What do the plants of F_1 generation look like ? (b) What is the ratio of tall plants to dwarf plants if F_2 generation? (c ) Which type of plants were missing in F_1 generation but reppeared in F_2 generation? (ii) Why is the sino-atrial node called the pacemaker of heart ?

    A
    both correct
    B
    assertion only right
    C
    reason only right
    D
    both wrong

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