give cross for heterozygous male having tongue rolling traits that is a dominant trait is when crossed with normal female have four children out of them one of the female child has tongue rolling traits?

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Solution

If we consider the tongue rolling a dominant trait, in heterozygous male the genotype will be Tt. When this person is crossed with a normal female (tt) the gametes will be
Father – T and t
Mother – t
The cross will be

T
t
t
Tt
tt
t
Tt
tt

So, according to the cross half of their children will get the trait of rolling tongue whereas half of them cannot.

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Similar questions

In humans, the ability to roll the tongue is a dominant trait. The inability to roll the tongue is a recessive trait. If two individuals homozygous recessive for this trait have a child, what is the chance that the child will be able to roll his tongue?

If a male that is homozygous recessive for a trait is crossed with a female that is homozygous recessive for the same trait, what is the possibility of them having offspring with the recessive trait?

Some humans are able to roll their tongue, while others are not. Two parents (both tongue-rollers) have four children, Some of them are tongue rollers and some of them are not. Which of the following statements hold true regarding this?
(i) The allele for tongue-rolling is dominant
(ii) The probability that their next child will be a tongue-roller is 0.5.
(iii) The probability that their next child will not be a tongue-roller is 0.75.
(iv) Both parents have one allele for tongue-rolling and one allele for non-tongue-rolling.

Q. Some humans are able to roll their tongue, while others are not. Two parents (both tongue-rollers) have four children, all of whom are not tongue-rollers. Which of the following statements hold true regarding this?
(i) The allele for tongue-rolling is dominant
(ii) The probability that their next child will be a tongue-roller is 0.5.
(iii) The probability that their next child will not be a tongue-roller is 0.75.
(iv) Both parents have one allele for tongue-rolling and one allele for non-tongue-rolling.

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