Consider the structure of the dna double helix. in the original 1953 publication describing the discovery of the structure of dna, watson and crick wrote, "it has not escaped our notice that the specific pairings we have postulated immediately suggest a possible copying mechanism for the genetic material." what did they mean? you and a friend want to split a double-stranded dna molecule so you each have an equal half. is it better to cut the length of dna in half so each person has a shorter length, or to separate the strands and each take one? explain

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.

Which statement best describes how the nucleus, the rough endoplasmic reticulum, and ribosomes interact during protein synthesis?

Crossing over is a method of (blank)?