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I compare a cell from a tree’s leaf to a cell from the same tree’s trunk, examining their DNA, RNA, and protein. These cells are all parts of the same individual, but these cells perform different functions. What should I find?

You find a four-legged animal on the shore of a pond. It has a backbone, and can breathe through its skin, but also has lungs. Its eggs are thin, lacking an amnion, and must be laid in the water. This organism is…

Which phylum does this crow belong to?

Which of the following statements about photosynthesis is ACCURATE?

Two groups of mice live on opposite sides of a mountain. Mice mostly interbreed within their group. Sometimes, mice from one group cross the mountain and breed with the other group, making fertile offspring and transferring alleles across the mountain. What best describes these mice?

A. What RNA would be TRANSCRIBED from the following DNA? (3 pts) Coding:   5′-CCATGCATCCCGGATGAG-3′ Template: 3′-GGTACGTAGGGCCTACTC-5′ B. Use the codon table to translate that RNA into an amino acid sequence. (4 pts)

You put a membrane in a container of water, then put some solute on each side. You put more solute on the left than on the right. In this diagram, solute is shown as black dots:                                             This diagram shows the STARTING state of the container, before any movement has occurred. Which one of the following statements is TRUE?

How did you solve the previous problem on cat allele frequency? You may either: Explain in complete sentences OR Type out the calculations you did. (Even if you didn’t solve it correctly, partial credit is possible for having taken some steps towards the answer, so don’t leave this blank!)

The circled region in the middle of the cell membrane bilayer, as shown above, is…  

Which of the following would be most likely to lead to ALLOPATRIC speciation?