If an organism has 2 identical alleles for a particular trait then it is

what is heredity?

A short segment of DNA, that tell the body how to build a protein, and codes for a specific physical trait.

a trait that is determined by an allele found only on the sex chromosomes (XX or XY).

A trait where the dominant allele does NOT completely express itself. Results in a blended phenotype.

A trait where the heterozygous genotype produces characteristics of both alleles.

What process does this figure show?

Crossing over results in ______.

This punnett square shows incomplete dominance in snap dragons. What do the Rr alleles represent?

Black feathered chickens and white feathered chickens produce "checkerboard chickens". Both the black and white alleles express themselves fully. This is an example of

Norb has curly hair (CC). His wife has straight hair (cc). All of his children have wavy hair (Cc). What type of inheritance pattern is this, where the heterozygote is a "blend" of the two alleles?

Using the chart above, is it possible for a Type A person married to a Type B person to have Type O children?

Monica, who has Type A blood, has a child with Type O blood. However, she is unsure about the identity of the father. Is it Bob or John? Bob has Type B blood and John has type AB blood. From the information, which man is the child's father?

Sons inherit a(n) ______ chromosome from their mother and a(n) _____ chromosome from their father.

Daughters inherit a(n) _____ chromosome from their mother and a(n) ____ chromosome from their father

In red-green colorblindness, individuals cannot perceive the colors red and green in the same way as individuals with full color vision. Full color vision is coded by a dominant allele (B) on the X chromosome. Red-green colorblindness is caused by a recessive allele (b) on the X chromosome. Use this information to answer the following questions.

Identify the phenotype of a female with the genotype X^BX^b.

In red-green colorblindness, individuals cannot perceive the colors red and green in the same way as individuals with full color vision. Full color vision is coded by a dominant allele (B) on the X chromosome. Red-green colorblindness is caused by a recessive allele (b) on the X chromosome. Use this information to answer the following questions.

Identify the phenotype of a man with the genotype XbY.

A female who is heterozygous for hemophilia is called a(n) __________ because she is healthy but may pass the recessive gene to her offspring.

Men are more likely than women to get sex-linked diseases because

What are the possible blood types if a man with Type O blood had children with a woman with Type AB blood? Do a Punnett square!