Biology

Please read it carefully and answer the questions:

Q1: Each Student must find two types of differentiated cells- (1 animal, 1 plant)

(No repeats so first come first serve)

· Post

· An image of the cell,

· A quick description of the cell

· Answer this question “what makes that type of cell unique”.

· Include a source link to your where you found your type of cell & information.

· Present

· To start the next class period each student will have 1 minute to present their cells.

As a class we will have a comprehensive list of differentiated cells.

Q2: How many genes do we have written into our DNA?

Q3: DNA Helicase is the blue donut shaped protein that does what?

Q4: Because DNA is antiparellel one strand must be copied backwards. As DNA polymerase creates loops of DNA and copies these sections called okazaki fragments. A specific molecular machine or enzyme called DNA ligase joins these fragmented sections of DNA together to a complete strand of DNA? Google to find they type of bond DNA ligase catalyzes.

Q5: DNA is only about 2 nanometers thick, but DNA is about 30 to 40 million nanometers long. How long is DNA in centimeters?

Q6: To keep the DNA organized and regulate access to the genetic code DNA is wrapped around what purple colored proteins?

Q7: There are approximately 37.2 trillion cells in a human body. Drew Berry says that roughly how many cells are undergoing the process of mitosis right now? (Dozens, Thousands, or Billions of cells).

Q8: What is the wisker like dynamic scaffolding that pulls the duplicated chromosomes to the opposite sides of the cell during cell division?

Q9: How can can errors in, or damage to your DNA (f not repaired) cause premature aging?

Q10: Why are some DNA mutations beneficial?

Q11: Defects in DNA repair are associated with many kinds of cancer. Cancer is when a cell loses control of its replication. How can a mistake in DNA cause cancer?

Q12: What was the goal of the Human Genome Project?

Q13: What makes you, you? Where do the instructions that make you, you come from? What are these instructions stored on?

Q14: What are the 4 main chemicals or nucleotide bases of DNA?

Q15: How many base pairs are in the human genome?

Q16: Nutritional experts say that eating 1/2 lb of meat a week is healthy but the average American eats 1/2 lb a day. How does this lead to micro-nutrient malnutrition?

Q17: Use this video to dig a bit deeper into Mitosis- and answer the below.

On a blank sheet of paper-

1- Sketch out the cell cycle- G1, G0, S, G2, M

2-sketch the phases of mitosis- interphase, prophase, metaphase, anaphase, telophase, cytokinesis (include the nuclear envelope, nuclear envelope fragments, the accurate number of chromosomes through all the stages, spindle fibers, spindle poles,

 

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