In humans, black hair (B) is dominant over blonde hair (b) and brown eyes (E) are dominant over blue eyes (e). If a man that is heterozygous for both traits is crossed with a woman that is heterozygous for both traits, what are the chances of producing an offspring that is heterozygous for both traits?

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.

People with one sickle cell allele are not likely to get malaria. what is this an example of?