By Joseph Schenker Hey young Bears, I decided to make a more user friendly version of my earlier post that is hopefully easier to read! I have added in a bit more information too, so if you’re looking for some summer reading material….As CalSO begins to roll around and a lot of you are...

Written by Prerak Juthani (PEACE Advisor)  Which of the following statements is incorrect? a)    human cells in G2 have 92 strands of DNA b)   human cells in G2 have 46 strands of DNA c)    human cells in G2 have 46 chromosomes d)   both b and c e)    both a and c  Click “Read More”...

Written by Prerak Juthani (PEACE Advisor)  Which of the following cells is least likely to become cancerous? a) neuronal cell b) intestinal epithelial cells c) epithelial cell (skin) d) alpha pancreatic cell e) beta pancreatic cell Click “Read More” to see the answer.  The correct answer is A.  To understand this question, one must...

Written by Prerak Juthani (PEACE Advisor)  In meiosis, each chromosome has _____ attachment in metaphase I, and in mitosis, each chromosome has _____ attachment at metaphase. a) multipolar, multipolar b) multipolar, dipolar c) dipolar, monopolar d) monopolar, dipolar          e) none of the above Source: http://www.phschool.com/science/biology_place/biocoach/images/meiosis/memet1.gif Source: http://www.digitalwebb.com/learning/mitosis/images/metaphas.gif The correct answer is D.  The...

Crossing over involves exchange of DNA between ____ chromatids, and it also allows for tension to be created in ___ ___, which then allows for proper separation. a) sister, meiosis II b) nonsister, mitosis c) nonsister, meiosis II d) nonsister, meiosis I e) sister, meiosis IClick “Read More” to see the answer.  The answer...

Submitted by Prerak Juthani (PEACE Advisor)  Today, we are able to determine the sequence of proteins, and to your surprise, there are lots of proteins that do not start with methionine (despite the fact that methionine is the start codon needed to initiate translation). Why do you think this is? a) the protein is...

Written by Prerak Juthani (PEACE Advisor)  Let’s say that you want to insert a DNA sequence into a bacterium and NOT have the bacterium cut up the DNA. However, for some reason, every time you add it in, the DNA is cut and your experiment is ruined. With which of the following enzymes can...

Written by Prerak Juthani (PEACE Advisor)  Nucleotide Excision Repair is something that fixes mistakes in the DNA after they occur. Which of the following types of cells would have the most activity of nucleotide excision repair? a)skin cells b)capillary cells c)neurons d) platelets e) Red blood cells Click “Read More” to see the answer. ...

Written by Prerak Juthani (PEACE Advisor)  Centromeres serve to a)    hold on to chromatin that is actively being transcribe. b)   Serve as docking points for kinetochores. c)    Serve as docking points for microtubules. d)   Serve as separating points. e)    None of the above. Press “Read More” to see the answers.  The correct answer is B. ...

Written by Prerak Juthani (PEACE Advisor)  The way nucleotides are added are by the fact that the ____ ________ attacks the ___ ______ and displaces pyrophosphate as a leaving group. a) 5’ hydroxyl, 3’ phosphate b) 3’ hydroxyl, 3’ phosphate c) 5’ phosphate, 3’ hydroxyl d) 3’ hydroxyl, 5’ phosphate e) 3’ phosphate, 5’...