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Gene

Choose the co...

Question

Choose the correct option.
1. Alternative forms of genes which occupy the same position on chromosome.
A. Alleles
B. DNA

2. The trait that is not expressed is called recessive trait.
A. True
B. False

3. Which of these is not a dominant trait?
A. Blue eyes
B. Dimples

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Solution

Answer:A, A, A

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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

(c) tallness is the recessive trait (d) height of plant is not governed by gene T or t

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Statement 1: Recessive traits are expressed in both

F_{1}

F_{2}

generation.

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

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