Child Psychology

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If T is a genetic trait for tallness, and its allele, t, is recessive for tallness, and the four children of Paul and Paula have alleles TT, tT, Tt, and tt, how many of these children will be tall?

a.1
b. 2
c. 3
d. 4

I think it's "C"

  • Child Psychology -

    correct. tt will be short.

  • Child Psychology -

    I am a little confused by the way your question is phrased. If both T and t are for "tallness," then all of the children will be tall.

    If T is for normal height and t is for tallness, then only the tt genotype would be tall.

    If t is for normal height and T is for tallness, 3/4 of the children will tall. If this is what you meant with your problem, then bobpursley's answer is right.

    I hope this will help a little more. Thanks for asking.

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