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Anton [14]
3 years ago
5

In humans, the ability to roll up the sides of the tongue into a U-shape is controlled by one gene. Ability to roll the tongue i

s dominant to the inability to roll it. If two people who can roll their tongues each had one parent who could not, what is the probability that they will have a child who cannot roll his/her tongue
Biology
1 answer:
s2008m [1.1K]3 years ago
8 0

Answer:

25%

Explanation:

male                                

can roll tongue     -     cannot roll tongue

female

can roll tongue     -     cannot roll tongue

If they have a child, the possible combinations are:

1)

father's gene: can roll tongue

mother's gene: can roll tongue

RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE

2)

father's gene: can roll tongue

mother's gene: cannot roll tongue

RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE

3)

father's gene: cannot roll tongue

mother's gene: can roll tongue

RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE

4)

father's gene: cannot roll tongue

mother's gene: cannot roll tongue

RESULT = THE CHILD WILL NOT BE ABLE TO ROLL HIS/HER TONGUE

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