Similarities And Differences Between Mitosis And Meiosis

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1. How many divisions does a cell go through when doing meiosis?

Explanation

During meiosis, a cell undergoes two divisions. The first division, called meiosis I, separates homologous chromosomes, resulting in two daughter cells. Each daughter cell has half the number of chromosomes as the parent cell. The second division, called meiosis II, separates sister chromatids, resulting in four haploid daughter cells. Therefore, a cell goes through two divisions during meiosis.

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Similarities And Differences Between Mitosis And Meiosis - Quiz

All these questions related to similarities and differences between mitosis and meiosis. Take this quiz and learn more about it!

2. The exchange of segments between chromotids in a homologous chromosome pair is...

Explanation

Crossing over refers to the exchange of segments between homologous chromosomes during meiosis. This process occurs during prophase I, when the homologous chromosomes pair up and form a tetrad. Crossing over increases genetic diversity by shuffling genetic material between chromosomes. It results in the exchange of alleles and leads to the production of genetically unique gametes.

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3. How does crossing over allow for more genetic variation?

Explanation

Crossing over allows for more genetic variation because it involves the exchange of genetic material between homologous chromosomes during meiosis. This process leads to the creation of mixed chromosomes in the gametes, where each homologous chromosome can have alleles from both parents. This mixing of genetic material increases the diversity of the offspring's genetic makeup, allowing for a wider range of possible traits and characteristics.

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4. Meiosis is one division with 2 cells at the end

Explanation

Meiosis is a type of cell division that results in the formation of four daughter cells, each with half the number of chromosomes as the parent cell. Therefore, the given statement that meiosis is one division with 2 cells at the end is incorrect. Meiosis consists of two divisions, known as meiosis I and meiosis II, which together result in the formation of four cells.

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5. This concept (this exact definition) is on the midterm.   A gene is the instructions for making a protein (that gives you a trait)

Explanation

A gene is indeed the set of instructions that determine the synthesis of a specific protein, which in turn contributes to the development of a particular trait. These instructions are encoded in the DNA molecule and are passed from parents to offspring. The concept of a gene and its role in protein synthesis is fundamental in genetics and is commonly covered in introductory biology courses, making it likely to appear on a midterm exam.

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6. Synapsis is when homologous chromosomes pair up to form a tetrad

Explanation

Synapsis is the process during meiosis where homologous chromosomes come together and pair up to form a structure called a tetrad. This allows for the exchange of genetic material between the homologous chromosomes, leading to genetic diversity. Therefore, the statement that synapsis is when homologous chromosomes pair up to form a tetrad is true.

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7. We do mitosis to grow only

Explanation

we do mitosis to grow, AND heal, AND asexually reproduce (well organisms that do asexual reproducing)

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8. Some causes of cancer are

Explanation

The correct answer is "all of the above" because cancer can be caused by various factors, including viruses, mutations in DNA, and inherited genes. Viruses such as human papillomavirus (HPV), hepatitis B and C, and human immunodeficiency virus (HIV) can lead to certain types of cancer. Mutations in DNA can occur due to exposure to carcinogens, radiation, or errors during DNA replication, which can result in uncontrolled cell growth and the development of cancer. Additionally, certain inherited gene mutations, such as BRCA1 and BRCA2, can increase the risk of developing certain types of cancer.

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9. What are the steps (in order) of mitosis?

Explanation

Mitosis is a process of cell division that ensures equal distribution of chromosomes to daughter cells. It proceeds in the following order:

Prophase: Chromosomes condense and spindle fibers form.

Metaphase: Chromosomes align at the cell’s equator.

Anaphase: Sister chromatids are pulled apart to opposite poles.

Telophase: Nuclear membranes reform around the separated chromosomes.

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10. Cancer is...

Explanation

The term "cancer" refers to a condition where cells divide and multiply uncontrollably. This uncontrolled cell division is known as mitosis. Therefore, the answer "out of control mitosis" or "mitosis that is out of control" accurately describes the process of cancer.

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11. MATCHING!!
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12. When does crossing over happen? (start off your answer with "during...."

Explanation

During meiosis, crossing over occurs during prophase I. This is the stage where homologous chromosomes pair up and exchange genetic material, resulting in genetic recombination. Metaphase I follows prophase I and is the stage where the paired homologous chromosomes line up at the center of the cell. Therefore, crossing over can also occur during metaphase I, although it is primarily associated with prophase I.

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13. The steps of Meiosis
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14. Do YOU think you did well on this??

Explanation

The correct answer is "yes,no,idk give me my results!" because it encompasses all possible responses to the question "Do YOU think you did well on this?" The options "yes," "no," and "idk" cover the range of possible opinions or uncertainty one may have about their performance. Additionally, the phrase "give me my results!" suggests that the person is eager to know their performance outcome.

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How many divisions does a cell go through when doing meiosis?
The exchange of segments between chromotids in a homologous chromosome...
How does crossing over allow for more genetic variation?
Meiosis is one division with 2 cells at the end
This concept (this exact definition) is on the midterm.  ...
Synapsis is when homologous chromosomes pair up to form a tetrad
We do mitosis to grow only
Some causes of cancer are
What are the steps (in order) of mitosis?
Cancer is...
MATCHING!!
When does crossing over happen?...
The steps of Meiosis
Do YOU think you did well on this??
Alert!

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