Answer:
65
Explanation:
An autosomal dominant condition is one where one copy of the allele is sufficient to cause the condition. Penetrance refers to the degree to which that mutation causes the phenotype
Lets say the allele for sharp beak is S and for normal beak is s. If 2 heterozygous sharp-beaked terrapins mate, the cross is the following:
Ss x Ss
<u> S s </u>
S SS Ss
s Ss ss
The possible genotypes are SS, Ss and ss. 50% of their offspring will be heterozygous, and 25% homozygous each. Therefore, if the mutation was fully penetrant, it would be 75 out of 100 offspring would be affected.
However, the mutation is only 87% penetrant, which means only 87% of those 75 offspring would have the condition.
87% of 75 = 65.25
Therefore, we would expect 65 of their offspring to have sharp beaks
Option (c) 1 in 54 is correct.
Every 1 in 54 children in United States have autism.
<h3>What is autism?</h3>
- ASD, often known as autism spectrum disorder, is a neurological and developmental condition that affects how people connect with others, communicate, learn, and conduct.
- Although autism can be identified at any age, because symptoms typically emerge in the first two years of life, autism is referred to be a "developmental condition."
- Autism symptoms include: Issues with social connections. verbal and nonverbal communication impairment.
- The frequency of autism in the US has gradually increased since researchers started monitoring it in 2000.
- Autism is characterized by a pattern of repetitive behavior and narrow, constrained interests. Concerns about a "epidemic" of autism have been raised by the rate increase.
Learn more about autism here:
brainly.com/question/14299719
#SPJ4
If you do it yourself then you’ll actually learn lol
Response bias goes toward the 3rd one and question wording goes to the 2nd
