write the definition of phenotype and give an example!
write the definition of genotype and give an example!
write the definition of homozygous dominant and give an example!
write the definition of homozygous recessive and give an example!
write the definition of heterozygous and give an example!

Question

Accepted Answer

### 1. Phenotype
# Brief Explanations:
Phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype and environmental factors. For example, in pea plants, the color of the flower (purple or white) is a phenotype. Purple flower color is a phenotype resulting from certain genetic combinations.
# Answer:
Definition: The observable physical or biochemical traits of an organism, resulting from the interaction of its genotype and the environment. Example: In humans, having brown eyes (as opposed to blue eyes) is a phenotype.

### 2. Genotype
# Brief Explanations:
Genotype refers to the genetic constitution of an organism, the set of alleles (gene variants) it possesses. For example, in pea plants for flower color, the genotype could be PP (homozygous dominant), Pp (heterozygous), or pp (homozygous recessive), where P and p are alleles related to flower color.
# Answer:
Definition: The genetic makeup of an organism, specifically the set of alleles it carries for a particular trait or set of traits. Example: For human blood type, the genotype $ I^A I^A $ (for blood type A, homozygous) is a genotype.

### 3. Homozygous Dominant
# Brief Explanations:
Homozygous dominant means an organism has two identical dominant alleles for a particular gene. The dominant allele is expressed in the phenotype. For example, in pea plants, if the allele for purple flower (P) is dominant, a plant with genotype PP is homozygous dominant and will have purple flowers.
# Answer:
Definition: An organism with two identical dominant alleles (e.g., AA, where A is the dominant allele) for a given genetic trait. Example: In a plant species where the allele for tall height (T) is dominant over short (t), a plant with genotype TT is homozygous dominant and will be tall.

### 4. Homozygous Recessive
# Brief Explanations:
Homozygous recessive is when an organism has two identical recessive alleles for a gene. The recessive trait is expressed only when there are two recessive alleles (since the dominant allele would mask it if present). For example, in pea plants, the genotype pp (where p is the recessive allele for white flowers) leads to white flowers, as there are no dominant P alleles to mask the recessive trait.
# Answer:
Definition: An organism with two identical recessive alleles (e.g., aa, where a is the recessive allele) for a given genetic trait. Example: In humans, for the trait of attached earlobes (recessive to free earlobes), a person with genotype ee (where e is the recessive allele) has attached earlobes.

### 5. Heterozygous
# Brief Explanations:
Heterozygous means an organism has two different alleles for a particular gene, one dominant and one recessive (or two different variants in general). The dominant allele's trait is typically expressed in the phenotype. For example, in pea plants, a plant with genotype Pp (for flower color, P dominant, p recessive) is heterozygous and will have purple flowers (since P is dominant).
# Answer:
Definition: An organism with two different alleles for a particular gene (e.g., Aa, where A is dominant and a is recessive). Example: In humans, for the ability to roll the tongue (dominant trait, R) and non - rolling (recessive, r), a person with genotype Rr is heterozygous and can roll their tongue.

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Question

Explanation:

1. Phenotype

Answer:

2. Genotype