Exam 19: Genetics and Inheritance

If a piece of chromosome breaks off during mitosis or meiosis and does not reattach, the event is called

A phenotype is determined by ________ and ________.

An example of a genotype is

A(n) ________ refers to the complete set of genes in the chromosomes of an individual.

Based on the information below, answer the following two questions. "The color of the four-o'clock flower is as follows: homozygous dominant-red homozygous recessive-white" -If flower color of the offspring was 25% white and 75% red, and was inherited by complete dominance, the parents' genotypes must be

An individual who inherits three copies of chromosome 18 will develop ________ syndrome.

A Punnett square can be used to determine possible genotypes of offspring as well as possible genotypic and phenotypic ratios of the offspring given a particular combination of alleles.

Based on the information below, answer the following three questions, assuming complete dominance. "In humans, the ability to roll the tongue is a dominant trait; the inability to roll the tongue is a recessive trait." -If an individual homozygous dominant for this trait has a child with an individual who cannot roll his tongue, what is the chance that the child will have a heterozygous genotype?

Which of the following human traits is an example of codominance?

What is the significance of crossing-over, independent assortment, and random fertilization?

Based on the information below, answer the following two questions. "The color of the four-o'clock flower is as follows: homozygous dominant-red homozygous recessive-white" -The flower color in this plant is inherited by incomplete dominance. If a flower homozygous dominant for flower color is crossed with a white flower, the color of the offspring flowers will be expected to be