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- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_General_Biology_l_-_Laboratory_Manual/01%3A_Labs
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_General_Biology_l_-_Laboratory_Manual/01%3A_Labs/1.01%3A_Scientific_InvestigationUse the transfer pipette to remove the Daphnia, and some of the water it is in, from the specimen jar and place it on the concavity slide. Note: Be sure to keep all the steps of your experimental prot...Use the transfer pipette to remove the Daphnia, and some of the water it is in, from the specimen jar and place it on the concavity slide. Note: Be sure to keep all the steps of your experimental protocols exactly the same (add the same volume of test solution, equivalent to the volume of water added in the control treatments).
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_Lab_Manual-_Version_2/02%3A_Scientific_MethodOn the X-axis, indicate time (in minutes), and on the Y-axis, show the number of pillbugs present on each side of the chamber. ○ Use clear tape to attach the dishes together securely along the sides w...On the X-axis, indicate time (in minutes), and on the Y-axis, show the number of pillbugs present on each side of the chamber. ○ Use clear tape to attach the dishes together securely along the sides where the slots are cut, ensuring the pathway between the two dishes is stable and pillbugs can move freely between them. Line graphs show changes in the quantity of the chosen variable and emphasize the rise and fall of the values over their range.
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_Lab_Manual-_Version_2/03%3A_MacromoleculesUse a pipette to transfer 1 mL of the test substances/solutions listed in Table \(\PageIndex{5}\) to the corresponding labeled test tubes. *For solid substances, crush the test substance into small pi...Use a pipette to transfer 1 mL of the test substances/solutions listed in Table \(\PageIndex{5}\) to the corresponding labeled test tubes. *For solid substances, crush the test substance into small pieces, using a mortar and pestle, and add it to the test tube to approximately the same height on the test tube as the liquid substances.
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_General_Biology_l_-_Laboratory_Manual/01%3A_Labs/1.05%3A_Mitosis_and_Meiosis_IThis division occurs in the reproductive organs (gonads -- testes of males or ovaries of females) of species that reproduce sexually, and results in the formation of gametes (eggs or sperm) that conta...This division occurs in the reproductive organs (gonads -- testes of males or ovaries of females) of species that reproduce sexually, and results in the formation of gametes (eggs or sperm) that contain half the number of chromosomes as the original cell. Line up the homologous pairs of chromosomes so that homologues are paired together but the maternal and paternal chromosomes are on opposite sides of the equatorial plate along the middle of the cell.
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_General_Biology_l_-_Laboratory_Manual/01%3A_Labs/1.11%3A_Gel_electrophoresisIf the DNA sample from a suspect matches the DNA at a crime scene, then that signifies that the suspect in question was present at the crime scene (although the suspect may not have committed the crim...If the DNA sample from a suspect matches the DNA at a crime scene, then that signifies that the suspect in question was present at the crime scene (although the suspect may not have committed the crime). Slowly press the plunger down to the first stop and then continue to press the plunger ALL the way down to the SECOND stop in order to release all of the liquid from the tip.
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_General_Biology_l_-_Laboratory_Manual/01%3A_Labs/1.10%3A_DNA_and_Restriction_EnzymesThe dish soap acts to break up the phospholipid molecules that form the cell membrane and the nuclear membrane, which lyses the cell and releases the cellular contents, including DNA. On each strand o...The dish soap acts to break up the phospholipid molecules that form the cell membrane and the nuclear membrane, which lyses the cell and releases the cellular contents, including DNA. On each strand of DNA the phosphate and deoxyribose sugar are arranged on the outside of the DNA molecule, forming a “backbone.” The nitrogenous bases are positioned in the interior of the double helix.
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_Lab_Manual-_Version_2/01%3A_Microscope_LabNot only does measuring the field of view at different magnifications demonstrate this property, but once you know the diameter of the field of view in millimeters (mm) at various magnifications, you ...Not only does measuring the field of view at different magnifications demonstrate this property, but once you know the diameter of the field of view in millimeters (mm) at various magnifications, you will be able to estimate the size of the cells or other structures being viewed in the microscope you are using for every slide you look at from now on.
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_Lab_Manual-_Version_2/09%3A_DNA_LabThe dish soap acts to break up the phospholipid molecules that form the cell membrane and the nuclear membrane, which lyses the cell and releases the cellular contents, including DNA. On each strand o...The dish soap acts to break up the phospholipid molecules that form the cell membrane and the nuclear membrane, which lyses the cell and releases the cellular contents, including DNA. On each strand of DNA the phosphate and deoxyribose sugar are arranged on the outside of the DNA molecule, forming a “backbone.” The nitrogenous bases are positioned in the interior of the double helix.
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_General_Biology_l_-_Laboratory_Manual/01%3A_Labs/1.03%3A_Organic_MoleculesUse a pipette to transfer 1 mL of the test substances/solutions listed in Table 5 to the corresponding labeled test tubes. *For solid substances, crush the test substance into small pieces, using a mo...Use a pipette to transfer 1 mL of the test substances/solutions listed in Table 5 to the corresponding labeled test tubes. *For solid substances, crush the test substance into small pieces, using a mortar and pestle, and add it to the test tube to approximately the same height on the test tube as the liquid substances.
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_101%3A_General_Biology_l_-_Laboratory_Manual/zz%3A_Back_Matter/10%3A_Index
