Post test Genetics Review

Plant height, leaf shape, and flower color are all examples of what in plants

• inherited traits

• transport parts

• environmental factors

• adaptations

What is heredity?

• passing traits from parent to offspring

• passing traits from offspring to parent

• passing traits from children to parents

• when traits jump a generation

What is genetics?

• the study of how traits are passed from parent to offspring

• study of the environment

• study of how animals interact

• study of how people function without food

Humans use _________ to pass on desired phenotypic traits to the next generation of organisms.

• natural breeding

• selective breeding

• selective insemination

• artificial fertilization

Patrick and Patti are both heterozygous for their pink skin color which is dominant (P). Yellow skin is recessive (p). What would be the resulting genotypes and phenotypes of their offspring?

• one PP (pink), two Pp (pink), one pp (yellow)

• all PP (pink)

• two PP (pink), two pp (yellow)

• two PP (pink), two Pp (pink)

What is a segment of DNA that controls a trait called?

• gene

• chromosome

• base pair

• nucleotide

Which statement BEST summarizes the role of the DNA molecule in cells?

• guides cell division

• protects the cell from infection

• provides instructions for making proteins

• regulates the chemical processes that provide the cell with energy

What process accounts for species diversity?

• mitosis (making body cells)

• meiosis (making cells for sexual reproduction)

• predation

• symbiosis

What process results in 2 daughter cells each having the same number of chromosomes as the parent cell?

• meiosis (makes sex cells)

• mitosis (makes body cells)

• photosynthesis

• cytokinesis

What shape does the molecule in the image have?

• linear

• tetrahedral

• double helix

• single helix