What does recessive allele mean?

What does dominant allele mean?

Which gene pair represents a child being heterozygous?

What does a carrier mean?

What type of condition is polydactyly?

What does polydactyly cause?

What must the parents have for a child to have polydactyly?

What type of allele causes polydactyly?

Which gene pair represents a child not having polydactyly?

Does a heterozygous child for the polydactyly gene have polydactyly?

If both parents are Dd for polydactyly, what is the chance of the child having polydactyly?

If one parent is DD for polydactyly and the other is dd, what is the chance of the child having polydactyly?

If one parent is Dd for polydactyly and the other is dd, what is the chance of the child having polydactyly?

What type of condition is cystic fibrosis?

What does cystic fibrosis affect?

What does cystic fibrosis cause?

What can cystic fibrosis cause?

What is cystic fibrosis caused by?

Why can offspring have cystic fibrosis without the parents having it?

Why can parents carry the cystic fibrosis allele without having cystic fibrosis?

How many parents must have the cystic fibrosis allele for the offspring to have it?

Do both parents need to have cystic fibrosis for the child to have it?

Why must both parents have the cystic fibrosis allele for the child to have it?

If both parents are carriers, what is the chance of the child having cystic fibrosis?

If one parent is a carrier and the other has cystic fibrosis, what is the chance of the child having cystic fibrosis?

If one parent has cystic fibrosis and the other has no cystic fibrosis allele, what is the chance of the child having cystic fibrosis?