Which of the following statements regarding chromosomes are true? (Please choose all that apply.)

The oxygen produced by photosynthetic plants comes most directly from ______.

The term epigenetics refers to ______.

Background: In lab, students are studying growth of radishes (a fast-growing plant).   Question: Which of the following is an example of a hypothesis related to their work?

Regulation of gene expression involves ______.

Optional extra credit (2 points)! The SARS-CoV-2 virus responsible for the current COVID-19 pandemic gains entry to epithelial cells especially of the respiratory and oral passageways by binding to angiotensin-converting enzyme 2 (ACE2) found on their surface. The structure of ACE2 is shown below. 1) Consider the ribbons forming coils. What are these particular structures called? 2) What level of protein structure (i.e., primary, secondary, tertiary, or quaternary) are these structures considered, and what type of bonds are primarily responsible for the formation of these structures? Photo credit: Emw – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=8761587

A molecule binds to a receptor on the surface of a cell membrane. A short time later the cell responds by expressing genes and synthesizing proteins. What initial process did that binding event first initiate?

You cross two plants that have pink flowers. The F1 offspring include mostly plants with pink flowers, some plants with red flowers and some plants with white flowers. Your goal is to have as many pink-flowered plants in the F2 generation as possible. Which F1 plants would you cross to achieve this goal?

Which of the following processes produces the most ATP?

Given the Wompus World as discussed in class. Assuming that the agent has previously been at location [1,1] and [1,2] in the grid and is now in location [2,2]. Assuming the agent senses a  stench at the new location, encode the rule that allows the agent to infer the possible location of the wompus. Assume that the agent didn’t sense anything at [1,1] or [1,2]. Use the notation S[m,n] to describe the location of the stench and W[m,n] to describe the location of the wompus in the grid. Use or for logic or operations in the propositional logic statement.