Question

The achoo syndrome (sneezing in response to bright light) and trembling chin (triggered by anxiety) are both dominant traits in humans. What is the probability that the first child of parents who are heterozygous for both the achoo gene and trembling chin will have achoo syndrome but lack the trembling chin? What is the probability that the first child will have neither achoo syndrome nor trembling chin?

Name: the achoo syndrome sneezing in response to bright light and trembling chin triggered by anxiety are both dominant traits in humans what is the probability that the first child of parents who 94988
Uploaded: 2022-09-19T17:29:29-08:00
Duration: 2 min 12 s
Channel: Sri K
Description: the achoo syndrome sneezing in response to bright light and trembling chin triggered by anxiety are both dominant traits in humans what is the probability that the first child of parents who 94988

          The achoo syndrome (sneezing in response to bright light) and trembling chin (triggered by anxiety) are both dominant traits in humans.
What is the probability that the first child of parents who are heterozygous for both the achoo gene and trembling chin will have achoo syndrome but lack the trembling chin?
What is the probability that the first child will have neither achoo syndrome nor trembling chin?

Added by Santiago P.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Sri K

09/19/2022

Step 1

Since both traits are dominant, the parents must be heterozygous for both traits. Let's represent the achoo gene as A (dominant) and a (recessive), and the trembling chin gene as T (dominant) and t (recessive). Therefore, the parents' genotypes are AaTt. Show more…

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The achoo syndrome (sneezing in response to bright light) and trembling chin (triggered by anxiety) are both dominant traits in humans. What is the probability that the first child of parents who are heterozygous for both the achoo gene and trembling chin will have achoo syndrome but lack the trembling chin? What is the probability that the first child will have neither achoo syndrome nor trembling chin?