Monohybrid Crosses

What is codominance?

• A trait where one trait is dominant and the other is reccesive
• A trait where neither traits are dominant
• A trait where both traits a reccesive
• A trait where both traits are dominant

What is the definition of homozygous?

• A condition in which both alleles of a gene pair in a heterozygote are fully expressed, with neither one being dominant or recessive to the other.
• Having identical genes (one from each parent) for a particular characteristic.
• Having two different genes for a particular characteristic.
• The unit of heredity; A section of DNA sequence encoding a single protein.

What is a genotype?

• a gene
• genetic material (the letter code)
• a fixed location on a strand of DNA where a gene or one of its alleles is located
• A law that states that factors for different characteristics are distributed to gametes independently.

What is Codominace

• a form of intermediate inheritance in which one allele for a specific trait is not completely dominant over the other.
• A condition in which both alleles of a gene pair in a heterozygote are fully expressed, with neither one being dominant or recessive to the other.
• the trait that appears in the heterozygous condition.
• the trait that is masked in the heterozygous condition.

What is a Monohybrid Cross?

• The trait that appears in the homozygous condition.
• Is used to predict the probability that certain traits will be inherited by offspring.
• Involves a single pair of genes, or one trait.
• The case when one allele is not completely dominant over another.

Tags

NGSS.HS-LS3-3

What is Incomplete Dominance?

• A condition in which both alleles of a gene pair in a heterozygote are fully expressed, with neither one being dominant or recessive to the other
• Is the likelihood that a specific event will occur or is the likely outcome a given event will occur from random chance
• A form of intermediate inheritance in which one allele for a specific trait is not completely dominant over the other
• the trait that is masked in the heterozygous condition.

The brown fur color is dominant. If the mother is a homozygous brown fur and the father is a homozygous white fur, what is the phenotype ratio?

• 1 Brown : 3 White
• 4 Brown
• 3 Brown: 1 white
• 2 Brown: 2 white

Tags

NGSS.HS-LS3-3

What is the definition phenotype?

• Physical apperance
• Genetic makeup
• A unit of heredity
• The likelihood that a specific event will occur

Incomplete dominance is a form of inheritance where ________

• One allele is dominant over the other
• One allele is expressed in a different location than it should be
• One allele is not completely expressed over another allele
• One allele eats the other

What is the law of segregation?

• states that factors for different characteristics are distributed to gametes independently.
• Each organism contains two factors for each trait; factors segregate in the formation of gametes. When two gametes combine during fertilization, the offspring have two factors controlling a specific trait.
• a form of intermediate inheritance in which one allele for a specific trait is not completely dominant over the other.
• is the likelihood that a specific event will occur or is the likely outcome a given event will occur from random chance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2