1. Given a photograph of stained cells in mitosis, identify the phases and explain the different chromosome configurations. Here is a photo of the stained cells in mitosis, chromosomes are purple because they have
been stained with crystal violet dye, making them easy to see.

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi