Scientists’ understanding of the role and function of DNA has built up over time. How did the findings from Hershey and Chase’s bacteriophage experiments likely influence the Meselson-Stahl experiment, and how might Meselson and Stahl’s results help scientists understand how damaged DNA can be inherited by future generations?

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

All organisms contribute some water to the water cycle by conducting

Which of the following molecules can be broken down into simple sugars? a. nucleic acid b. protein c. lipid d. carbohydrate