Blog

Biological sex in humans is mostly determined by whether an individual has a Y chromosome or not. If they have a Y chromosome, they are usually male, if they do not have a Y, then they are usually female. This is not how sex is determined in most animals, however. In fact, there are many different methods of sex determination across the animal kingdom. Describe one method that animals use for sex determination, other than the one used by humans. Note: sex determination is term that describes the mechanism or determining factor that makes it so that an individual will become biologically female versus biologically male, it does NOT mean how you would figure out whether an individual is male or female (for example, by seeing size differences, coloration differences, etc) (2 pts)

Why is modeling a procedure more effective than simply explaining it?

Cytokinesis often, but not always, accompanies the last phase of mitosis: _____.

Students debate ethical issues passionately but some dominate discussions. Others stay silent. What classroom management strategy encourages balanced participation?

Students argue with parents at home but function well in class, while another student becomes embarrassed during presentations. What management response supports emotional development?

Why should teachers avoid giving long lectures about rules on Day 1?

Many anti-cancer drugs affect cells undergoing mitosis. If an anti-cancer drug disrupts the formation of microtubules, which of the following will be most directly affected?

  The name of the phase that is shown above is:  

LAST QUESTION (free points) You probably studied hard on some concepts that did not end up making it into this exam. For this question, briefly explain any 1 concept from the class that was not the focus of any question so far on this exam. For your answer, first define that concept and then give a realistic example of that concept in the real world.

CRISPR/Cas9 allows you to add a gene to an organism’s genome or create a loss-of-function mutation. Besides the end effect (adding a new gene vs deletion/loss-of-function of a gene) what is the primary difference between how CRISPR leads to addition vs loss-of-function of genes?