Solve for in the proportion:  

5. Eukaryotic chromosomes are composed of a complex of 60% protein and 40% DNA. This complex is referred to as:  

Write a fraction to represent the shaded portion of the figure.

29. During this stage of mitosis, the chromosomes become attached to the spindle at their kinetochores.  

If the ratio of boys to girls in a class is 1:6, what is the ratio of girls to all students in the class?

47. The point of connection between two sister chromatids, before anaphase II of meiosis separates them, is called the  

Write the number 0.000265 in scientific notation.

If a and b are rational numbers with and , and if m is an integer, determine if the following is true or false:  

Students at Maple School earned $672 selling candies. They want to accumulate $2000 for a trip.  What percent of their goal has been reached?

35. THIS IS NOT A HARD QUESTION…THINK: You are examining the effect of maturation-promoting factor (MPF) in sea urchin cells, which have a diploid number of 36. If you fuse a dividing sea urchin cell with a G1 arrested oocyte, what would be the outcome?