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Complete the following questions, save with your name and attach to the drop box for Read over the parts of the microscope and answer the following questions: 1. What do you call the lens you look through on the microscope? 2. What is the difference between the ocular lens and the objective lens? 3. Where do you place the slide on the microscope? 4. Which adjustment, course or fine, do you use when you are observing the highest power? 5. What would the total magnification be if you are looking through the ocular and using each of the following objectives. Ocular Objective Total Magnification 10x 4x 10x 10x 10x 40x Experiment 1, Virtual Magnification Procedure, How Big Is It? After completion answer the following questions: 1. At what magnification do you first notice the ragweed pollen? 2. Which is bigger, a rhinovirus or E. Coli? 3. Based on the magnification, how many of the E. Coli can fit into the same space as the head of a pin? 4. About how many red blood cells could fit across the diameter of a human hair (again, look at the magnification scale)? Experiment 2, Virtual Microscope Procedure. After completion answer the following questions: 1. What is the first step normally taken when you look through the ocular lenses? 2. What is the highest objective lens you can use to see the entire letter e? 3. The nuclei (the structure inside a cell that contains DNA) of the cheek cells have been stained using a special dye so that they appear purple. What shape are they? 4. At high magnification, you may notice that not all of the nuclei in the onion root tip slide appear as the shape you described in the question above. What do they look like? 5. After completing the m1 exercise in the "Try this" section, how tall is the letter e?
What are the carbon backbone structures of the amino acids that give rise to: pyruvate, acetyl CoA, or TCA intermediates?
Why might replacing an arginine with a histadine result in a defective protein?
What is splicing? How is this a potential solution for the Genome Paradox?
Reporter genes are often used to study how the transcription of a particular gene is controlled during fruit fly development. You are interested in a gene called brainless that you think is involved in neural cell development.
Imagine that the sample of sediments are cemented together to form a sedimentary rock. After that, that rock is heated and compressed into a metamorphic rock.
Use knowledge of biological principles to ask relevant questions about the natural world make observations and discriminate in scientific and pseudoscientific explanations
Assume you are given an isolated muscle with its motor nerve intact. The preparation permits you to make electrophysiological measurements from the nerve
define why a change in amino acid sequence might affect
Cleavage is an embryonic event that mainly involves mitotic divisions. How does cleavage differ from mitosis occurring during the life after birth. What are its important functions?
White blood cells, leukocytes normally reside in the blood. However, they end up in tissues and organs when there's infection or damage to fight foreign bodies-antigens. At times they're activated from a false trigger.
Genomic DNA from the nematode worm Caenorhabditis elegans is organized through nucleosomes in the manner typical of eukaryotic genomes, with 145 bp encircling each nucleosome and approximately fifty-five bp in linker DNA.
Is an RNA polymerase insensitive to ?-amanitin concentrated at the Poly-A site, the chromosomal territory, spliceosome, the nucleolus, or the chromosomal matrix protein?
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