Genotype

High school (ages 12+)
Science & Technology

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/genotype

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. Who discovered Genotype?1903
2. What is the discoverer?Wilhelm Johannsen
3. What is the core definition?The complete set of genetic material or specific alleles an organism possesses
4. How many alleles does a human have for each gene?In humans, each gene has two copies because we have two sets of chromosomes. So we usually have two alleles for every gene.
5. What does it mean if the alleles are the same or different?If both copies are the same, the genotype is called homozygous. If they are different, it is called heterozygous.

Genotype: The complete genetic makeup of an organism, including all its alleles.
Allele: A specific variant form of a gene that arises by mutation and is found at a given place on a chromosome.
Phenotype: The observable physical and biochemical characteristics of an organism, resulting from genotype and environment.
Ploidy: The number of complete sets of chromosomes in a cell or organism.