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Questions and Answers
What is the outcome of mitosis and meiosis in terms of daughter cells produced?
What is the outcome of mitosis and meiosis in terms of daughter cells produced?
- Mitosis: 1, Meiosis: 2
- Mitosis: 2, Meiosis: 2
- Mitosis: 1, Meiosis: 4
- Mitosis: 2, Meiosis: 4 (correct)
If an organism with 24 chromosomes undergoes mitosis, how many chromosomes will each of its daughter cells contain?
If an organism with 24 chromosomes undergoes mitosis, how many chromosomes will each of its daughter cells contain?
- 24 (correct)
- 6
- 12
- 48
Which statement accurately describes meiosis?
Which statement accurately describes meiosis?
- Meiosis occurs in all types of body cells.
- Meiosis results in four haploid cells from a single diploid cell. (correct)
- Meiosis involves only one round of division.
- Meiosis produces genetically identical daughter cells.
During metaphase, to what specific part of the chromosome do spindle fibers attach?
During metaphase, to what specific part of the chromosome do spindle fibers attach?
In a fish species with a diploid chromosome number of 20, how many chromosomes would typically be found in its bone cells?
In a fish species with a diploid chromosome number of 20, how many chromosomes would typically be found in its bone cells?
Which diagram accurately depicts the process of mitosis, ensuring equal distribution of genetic material?
Which diagram accurately depicts the process of mitosis, ensuring equal distribution of genetic material?
During which specific phase of meiosis does the second round of genetic variation primarily occur?
During which specific phase of meiosis does the second round of genetic variation primarily occur?
Which cellular structures, composed of individual microtubule fibers, are responsible for the movement of chromosomes during cell division?
Which cellular structures, composed of individual microtubule fibers, are responsible for the movement of chromosomes during cell division?
What event during cell division leads to the exchange of genetic material between paternal and maternal chromosomes?
What event during cell division leads to the exchange of genetic material between paternal and maternal chromosomes?
When two heterozygous round pea plants (Rr x Rr) are crossed, what is the expected phenotypic ratio in the F2 generation?
When two heterozygous round pea plants (Rr x Rr) are crossed, what is the expected phenotypic ratio in the F2 generation?
Flashcards
Daughter cells in mitosis vs. meiosis?
Daughter cells in mitosis vs. meiosis?
Mitosis produces 2 daughter cells, meiosis produces 4.
Spindle fiber attachment point
Spindle fiber attachment point
Spindle fibers attach to the kinetochore during metaphase of cell division.
Chromosome number in mitosis?
Chromosome number in mitosis?
Mitosis maintains the same chromosome number in daughter cells as in the parent cell.
Genetic exchange in cell division
Genetic exchange in cell division
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Rr x Rr phenotypic ratio?
Rr x Rr phenotypic ratio?
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gg x GG offspring genotype?
gg x GG offspring genotype?
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TT x tt offspring?
TT x tt offspring?
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Study Notes
- Mitosis produces 2 daughter cells, while meiosis produces 4.
- An organism with 24 chromosomes undergoing mitosis will produce daughter cells with 24 chromosomes.
- Meiosis results in four haploid cells from a single diploid cell.
- Spindle fibers attach to the kinetochore of the chromosome during metaphase.
- In a species of fish with a diploid chromosome number of 20, bone cells would normally have 20 chromosomes.
- Mitosis ensures equal distribution of genetic material, resulting in two identical daughter cells, crucial for growth, repair, and maintenance.
- Diagram B correctly represents the process of mitosis.
- Genetic variation occurs during Meiosis I.
- Spindle fibers are responsible for moving chromosomes during cell division.
- Crossing over involves the exchange of genetic material between parental and maternal chromosomes.
- The expected phenotypic ratio in the F2 generation when crossing two heterozygous round pea plants (Rr x Rr) is 3:1.
- If a white-furred rabbit (gg) mates with a gray-furred rabbit (GG), the offspring will have a 100% Gg (heterozygous gray) genotype.
- When Mendel crossed a homozygous tall (TT) plant with a homozygous short (tt) plant, the offspring will have a heterozygous tall (Tt) genotype and phenotype.
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