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  • 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

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’ 

Answers (1)

  1. Tallness is a dominant trait even though there is only one allele of T in the genotype but the output is tall.
  2. Hence cross between a tall plant (TT) and a short pea plant (tt) results in all tall plants.
  3. The other trait, which is not shown is called the recessive trait.

Therefore, option (a) is correct.

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infoexpert26

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