Hereditary carrier

High school (ages 12+)
Human Body

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/hereditary-carrier

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is Hereditary carrier known for?Can transmit the recessive allele to offspring
2. What is the phenotypic manifestation?Does not express the recessive trait or associated disease
3. What is the population genetics role?Serves as a reservoir for recessive alleles, maintaining genetic diversity
4. Why do carriers not show the trait?Carriers also have a dominant gene that hides the recessive one, so the trait doesn’t appear in them.
5. How can a child get a recessive disease from carriers?If both parents are carriers, each can pass the recessive gene to their child. There is a 25% chance the child will inherit two copies and show the disease.

Hereditary Carrier: An individual possessing a recessive allele for a trait without expressing the associated phenotype.
Allele: A variant form of a gene, occupying the same locus on homologous chromosomes.
Recessive Inheritance: A pattern of inheritance where a trait is expressed only when two copies of the recessive allele are present.
Phenotype: The observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.