An individual who is heterozygous for cystic fibrosis ________.is a carriercannot have children with cystic fibrosishas cystic fibrosiswill have children who are all carriers of cystic fibrosis
Question
An individual who is heterozygous for cystic fibrosis ________.is a carriercannot have children with cystic fibrosishas cystic fibrosiswill have children who are all carriers of cystic fibrosis
Solution
An individual who is heterozygous for cystic fibrosis is a carrier.
Here's why:
Cystic fibrosis is a genetic disorder that is inherited in an autosomal recessive manner. This means that in order for an individual to have the disease, they must inherit two copies of the defective gene (one from each parent).
If an individual is heterozygous for cystic fibrosis, this means they have one normal gene and one defective gene. They do not have the disease themselves because they have one normal gene that can make the necessary protein, but they are a carrier because they have a defective gene that they can pass on to their children.
As for the other options:
- They can have children with cystic fibrosis if their partner is also a carrier or has cystic fibrosis.
- They do not have cystic fibrosis because they have one normal gene.
- Whether their children will be carriers or not depends on the genetic makeup of their partner. If their partner does not carry the defective gene, none of their children will have cystic fibrosis, but they could be carriers if they inherit the defective gene from the heterozygous parent. If their partner is a carrier or has cystic fibrosis, their children could either be carriers or have the disease.
Similar Questions
2. The allele that causes cystic fibrosis is recessive. An individual who is heterozygous for cystic fibrosisa. cannot reproduce.b. will have children who are all carriers of cystic fibrosis.c. is a carrier.d. cannot have children with cystic fibrosis.
If a couple that are both heterozygous carriers of the cystic fibrosis allele have children, the chance that both their first and their second child are carriers is 0.5 x 0.5, or 25%, as determined by theMultiple choice question.
In genetics, a carrier is always heterozygous and may or may not show symptoms of the disease.Group of answer choicesFalseTrue
Cystic fibrosis is caused by the inheritance of recessive alleles depicted by a lower case ‘c’. Which of the following genotypes would result in an individual being affected by the condition?CFCcCCcc2What is the term for a person who has inherited a recessive allele for a disease, but is not affected by the condition? MutatorCarrierIncubatorMessenger3What is the genotype of a carrier for cystic fibrosis? CFccCCCc4What percentage of the offspring of two cystic fibrosis carriers are likely to be affected by the condition?50%25%75%100%5The inherited disorder Huntington’s disease is controlled by a dominant allele, H. If one parent has a homozygous dominant genotype, what percentage of the offspring will inherit the condition?100%50%25%75%6If both parents are heterozygous for Huntington’s disease, what percentage of their offspring will inherit the condition?50%75%100%25%
In genetics, a carrier is always _____.Group of answer choicesheterozygoushemizygoushomozygousNext
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