Structure and Function

What is codominance?

• happens when both traits are in a heterozygous offspring

• happens when both traits are in a homozygous offspring

• it is the combination of a pure phenotype

• It is the combining of homologous chromosomes

What is a gene

• a specific location on chromosome

• a unit of heredity that is responsible for the transfer of traits from parents to offspring.

• a specific location on a chromosome where a particular gene is located.

• a pair of chromosomes that carry the same genes but may have different alleles.

what's a locus

• a unit of heredity that is responsible for the transfer of traits from parents to offspring.

• a variant form of a gene that arises by mutation and is located at a specific locus on a chromosome

• a specific location on a chromosome where a particular gene is located.

• structure made up of DNA and protein that carries genetic information in the form of genes

what is a chromosome

• a chromosome where a particular gene is located.

• Homologous chromosomes are a pair of chromosomes that carry the same genes but may have different alleles.

• a variant form of a gene that arises by mutation and is located at a specific locus on a chromosome.

• structure made up of DNA and protein that carries genetic information in the form of genes.

Homologous chromosomes are

• a pair of chromosomes that carry the same genes but may have different alleles.

• a specific location on a chromosome where a particular gene is located.

• composed of DNA and determine various characteristics such as eye color, hair color, and height.

• only expressed in the phenotype when present in the homozygous state.

what does Homozygous dominant mean

• having two dominant alleles for a particular gene (e.g. DD for eye color, where D represents the dominant allele).

• having two identical alleles of a particular gene, either both dominant or both recessive.

• a structure made up of DNA and protein that carries genetic information in the form of genes

• refers to having two recessive alleles for a particular gene (e.g. dd for eye color,

what's a genotype

• the observable characteristics of an individual, such as their physical appearance and behavior, which are determined by their genotype and the environment.

  Dominant: Dominant refers to an allele that is expressed in the phenotype when present in either the homozygous or heterozygous state. For example, if an individual has at least one dominant allele for brown eyes, they will have brown eyes.

  Recessive: Recessive refers to an allele that is only expressed in the phenotype when present in the homozygous state. For example, if an individual has two recessive alleles for blue eyes, they will have blue eyes.

  "True-breeding" or "pure-bred": True-breeding or pure-bred refers to a population of organisms that only produce offspring with the same phenotype when they are self-crossed or crossed with another organism with the same phenotype. This indicates that the organisms are homozygous for a particular trait.

• efers to having two different alleles of a particular gene, one dominant and one recessive (e.g. Dd for eye color).

• the genetic makeup of an individual, including all of their genes and alleles.

• efers to having two recessive alleles for a particular gene (e.g. dd for eye color, where d represents the recessive allele).

a phenotype is

• having two dominant alleles for a particular gene

• having two recessive alleles for a particular gene (e.g. dd for eye color, where d represents the recessive allele).

• the genetic makeup of an individual, including all of their genes and alleles.

• the observable characteristics of an individual, such as their physical appearance and behavior, which are determined by their genotype and the environment.