What was the outcome when Mendel crossed a tall plant TT with a dwarf plant tt-A- The offspring were a blend of the two charactersB- Only the recessive trait appeared in F 1C- Both the traits appeared in equal numbers in F 1D- Only the dominant trait appeared in F 1

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Standard VIII

Biology

Laws of Mendel

What was the ...

Question

What was the outcome when Mendel crossed a tall plant (TT) with a dwarf plant (tt)?

Only the recessive trait appeared in

F_{1}

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Both the traits appeared in equal numbers in

F_{1}

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Only the dominant trait appeared in

F_{1}

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The offspring were a blend of the two characters

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Solution

The correct option is C Only the dominant trait appeared in $F_{1}$
When Mendel crossed two varieties of a character (such as tall and short) in pea plant, only the dominant trait (tall) appeared in $F_{1}$ generation. The genetic constitution of $F_{1}$ plants was Tt.

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Similar questions

Q. In one of the experiments with pea plants, Mendel observed that when a homozygous tall pea plant (TT) is crossed with a homozygous dwarf pea plant (tt), in the first generation, only tall plants appear. What happens to the traits of the dwarf plant in this case?

Q. A student makes a monohybrid cross between TT and tt plants, where T is dominant and t is recessive. Identify the correct statements on the basis of the information given.

Statement 1: Recessive traits are expressed in both

F_{1}

and

F_{2}

generation.

Statement 2: Recessive traits are expressed only in the absence of corresponding dominant trait in the offspring.

Question 3
A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants because

(a) tallness is the dominant trait
(b) shortness is the dominant trait
(c) tallness is the recessive trait
(d) height of pea plant is not governed by gene ‘T’ or ‘t’

A cross between a tall plant (TT) and short plant (tt) resulted in pregeny that were all tall plants because :

(a) tallness is the dominant trait (b) shortness is the dominant trait

In one of his experiments with pea plants, Mendel observed that when a pure tall pea plant is crossed with a pure dwarf pea plant, in the first generation

F_{1}

only tall plants appear.

(i)When the

F_{1}

generation plants were self-fertilized, he observed that in the plants of second-generation

F_{2}

both tall plants and dwarf plants were present. Why did it happen? Explain briefly.
(ii)What happens to the traits of the dwarf plants in this case?

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What was the outcome when Mendel crossed a tall plant (TT) with a dwarf plant (tt)?

The correct option is C Only the dominant trait appeared in F1When Mendel crossed two varieties of a character (such as tall and short) in pea plant, only the dominant trait (tall) appeared in F1 generation. The genetic constitution of F1 plants was Tt.

The correct option is C Only the dominant trait appeared in $F_{1}$
When Mendel crossed two varieties of a character (such as tall and short) in pea plant, only the dominant trait (tall) appeared in $F_{1}$ generation. The genetic constitution of $F_{1}$ plants was Tt.