Which of the following may be used to obtain an F 2 generation-a allowing flowers on a parent plant to be self-pollinatedb allowing flowers on an F 1 plant to be self-pollinatedc cross-pollinating an F 1 plant with a parent plantd cross-pollinating two parent plants

(a) allowing flowers on a parent plant to be self pollinated nbsp; nbsp; nbsp; nbsp;F2 generation can be obtained by allowing flowers on the plants of ...

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Biology

Sexual Reproduction in Flowering Plants

Which of the ...

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Which of the following may be used to obtain an F₂ generation?
(a) allowing flowers on a parent plant to be self-pollinated
(b) allowing flowers on an F₁ plant to be self-pollinated
(c) cross-pollinating an F₁ plant with a parent plant
(d) cross-pollinating two parent plants

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Solution

(a) allowing flowers on a parent plant to be self-pollinated
F₂ generation can be obtained by allowing flowers on the plants of F₁generation to be self-pollinated.

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A tall violet flowered plant (TTVV) is crossed with a dwarf white flowered plant (ttvv). When the $F_{1}$ plants are self-pollinated, a total of 1600 $F_{2}$ plants are produced. How many plants of $F_{2}$ generation are similar to the original parents in terms of both genotype and phenotype?

Q. Study the given data and answer the questions following the data.

Parental plants cross fertilised and seeds collected	F₁ (first generation offspring)	F₂ (offspring of self pollination of F₁)
Male parent always bore red flowers.	330 seeds sown and observed	Out of 44 seeds, 33 seeds gave plants with red flowers and 11 seeds gave plants with white flowers
Female parent always had white flowers.	All 330 gave red flowers

(a) What is the term for this type of cross?
(b) What does the data of the column marked F₁ indicate?
(c) Express the genotype of the (i) parents (ii) F₁ progeny, and (iii) F₂ progeny.

A tall violet flowered plant (TTVV) is crossed with a dwarf white flowered plant (ttvv). When the $F_{1}$ plants are self pollinated, a total of 1600 $F_{2}$ plants are produced. Among them, how many plants are tall with white flowers?

A self-pollinating plant with orange flowers and alternating leaf arrangement produces
Plants with red flowers and alternating leave- 47
Plants with orange flowers and alternating leaves- 103
Plants with yellow flowers and alternating leaves- 51

Suppose the original parent plant is cross-pollinated with a plant that has red flowers and non-alternating leaves. All of the resulting offsprings have non-alternating leaves. Which of the following is/are true?

Q. Match the following with respect to Hybridisation

\begin{matrix} L i s t - I & L i s t - I I A) S e l f i n g i n P a r e n t & I) T o s e l e c t t h e d e s i r a b l e h y b r i d s B) E m a s c u l a t i o n & I I) T o a v o i d s e l f p o l l i n a t i o n C) B a g g i n g & I I I) T o d e v e l o p h o m o z y g o s i t y D) S e l f i n g i n F 1 p l a n t s & I V) A r t i f i c i a l c r o s s p o l l i n a t i o n V) T o a v o i d u n w a n t e d c r o s s p o l l i n a t i o n \end{matrix}

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Which of the following may be used to obtain an F2 generation? (a) allowing flowers on a parent plant to be self-pollinated (b) allowing flowers on an F1 plant to be self-pollinated (c) cross-pollinating an F1 plant with a parent plant (d) cross-pollinating two parent plants

(a) allowing flowers on a parent plant to be self-pollinated F2 generation can be obtained by allowing flowers on the plants of F1 generation to be self-pollinated.

Which of the following may be used to obtain an F₂ generation?
(a) allowing flowers on a parent plant to be self-pollinated
(b) allowing flowers on an F₁ plant to be self-pollinated
(c) cross-pollinating an F₁ plant with a parent plant
(d) cross-pollinating two parent plants

(a) allowing flowers on a parent plant to be self-pollinated
F₂ generation can be obtained by allowing flowers on the plants of F₁generation to be self-pollinated.