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LCC Lab Exam 2 with 100% Correct Answers 2024

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LCC Lab Exam 2 with 100% Correct Answers 2024 How many chromosomes are in a human cell? How many pairs? - ️️ - 46, 23 pairs What characteristics do homologous chromosomes have? (what makes them a pair? - ️️ - Same size, same banding pattern, matched gene for gene What kind of antigens ...

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  • May 25, 2024
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LCC Lab Exam 2 with 100% Correct Answers
2024

How many chromosomes are in a human cell? How many pairs? - ✔️✔️- 46, 23 pairs

What characteristics do homologous chromosomes have? (what makes them a pair? -

✔️✔️- Same size, same banding pattern, matched gene for gene

What kind of antigens are present in the blood of a person that is type A? What

antibodies are present? - ✔️✔️- A-antigens, anti-B antibodies

What kind of antigens are present in the blood of a person that is type AB? What

antibodies are present? - ✔️✔️- both A and B antigens, no antibodies

What kind of antigens are present in the blood of a person that is type O? What

antibodies are present? - ✔️✔️- No antigens , both anti-A and anti-B antibodies

Which kind of blood cells fight off infection? - ✔️✔️- leukocytes (white blood cells)

What is the end result of nondisjunction? When does it occur? - ✔️✔️- unequal

distribution of chromosomes, it can occur either during meiosis I or II

What does aneuploidy mean? - ✔️✔️- abnormal number of chromosomes in a cell

How does a cell's surface area to volume ratio affect the efficiency of the cell? - ✔️✔️-

Cell is most efficient with a larger SA:V ratio. As the surface area decreases and volume

increases, the cell is likely to die as diffusion is incapable of penetrating entire volume or

meeting metabolic requirements

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