You have identified a previously unknown human gene that appears to have a role in autism. it is similar enough in dna sequence to a known mouse gene that you believe that the two genes may be evolutionarily related. you determine and compare the dna sequences, the predicted mrna sequences, and the predicted amino acid sequences corresponding to the two genes. you would expect to find the greatest sequence similarity from comparisons of the two:
a. dna sequences (13.6%)
  b. mrna sequences (3.9%)
  c. amino acid sequences (51.5%)
  d. all three comparisons are likely to show the same degree of sequence similarity (31.0%)

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.

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."

Witch theory suggests all living things are made up of cell or cells