Answer:
Since both Anthony and Sara are healthy carriers of the gene that causes cystic fibrosis, the chance of having a child with this disease are 1:4 (option D).
Explanation:
The inheritance pattern of cystic fibrosis is autosomal recessive, and considering that both parents carry the abnormal CFTR gene, it can be said that the parental genotypes are:
<em>Anthony N/Qf
</em>
<em>Sara N/Qf
</em>
Where N is the normal gene and Qf is the abnormal gene.
Since this is an autosomal recessive disorder, only the homozygosity of the defective allele will cause the disease to manifest
:
N/Qf X N/Qf
<em>Alleles N Qf
</em>
<em>N N/N N/Qf
</em>
<em>Qf N/Qf Qf/Qf
</em>
- The chances of having a healthy child are 25%.
- The chances of having a carrier child are 50%.
- The chances of having a child with cystic fibrosis are 25%.
Therefore, the chance of Anthony and Sara having a child with cystic fibrosis is 1:4.
Learn more:
Cystic fibrosis inheritance brainly.com/question/6584627
Something that would be considered a disadvantage is in a fight where your opponent has 2 arms and you only have one arm to fight him with.
Answer:
<h2>a. adduction </h2>
Explanation:
Adduction is a medical term that is used to describe the movement of the limb toward the body midline or body center. Fingers, toes, limbs and some others follow the adduction. It is a type of motion of the limbs so used in an anatomical study, physiotherapy, exercise, games, and some other fields. In the anatomical study, there are some other medical terms that explain other positions or movements of the body.
The animal cell and the plant cell have some organelles in common but there are some organelles that belong to only one of the cell. In the question given here, mitochondria, cillia and ribosomes are found in both plant and animal cells. The cell wall is found only in the plant cell. So, the correct option is B
Hope that help!