Biology

Biology, 15.07.2019 16:00, chrisraptorofficial

Tongue rolling dominant or recessive

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Biology, 28.07.2019 21:00, emi73

Me with this genetics problem, i will reward 91 points. : about 70% of canadians get a bitter taste from the chemical phenyl thiocarbamide (ptc), while the other 30% do not. the ability to taste this chemical (t) is a dominant characteristic, while taste-blindness to it is recessive (t). tongue-rolling ability is dominant (r), while the inability to roll the tongue is recessive (r). a tongue-rolling woman who is taste-blind for ptc has a father who could not roll his tongue but could taste the ptc chemical. she marries a man who can taste ptc but cannot roll his tongue. his mother was taste-blind to the chemical. show the possible children this couple could produce. use a punnett square to illustrate your answer.

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Biology, 29.07.2019 05:20, YoEsMyles3115

Tongue-rolling is a human trait that follows an autosomal recessive pattern of inheritance. a girl with the tongue-rolling trait has two brothers who do not have this trait. what is true of the children's parents? one parent must be homozygous dominant and the other is either heterozygous or homozygous recessive. both parents must be homozygous dominant. one parent must be heterozygous and the other is either heterozygous or homozygous recessive. both parents must be homozygous recessive.

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Biology, 05.08.2019 19:10, wezner19

Steven has the dominant tongue rolling phenotype but he does not know his genotype. his wife has the recessive non-tongue rolling trait. if their son cannot roll his tongue this means

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Biology, 25.10.2019 00:43, xaguilar

Humans have a gene, "t" that is involved in muscle formation of the tongue. individuals with the one allele can roll their tongues, while individuals with the other allele cannot. if both parents can roll their tongues, but their child cannot, what can be said about the mode of inheritance? a. tongue-rolling is dominant.b. tongue-rolling is recessive.c. the parents were both homozygous, while the child was heterozygous.d. tongue-rolling is dominant, and both parents were heterozygous (tt).e. tongue-rolling is recessive, and both parents were heterozygous (tt).

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