Genetic Variation Slides 25/26
Presentation
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Science
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9th - 12th Grade
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Practice Problem
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Medium
+1
Standards-aligned
Lenora Valery
Used 11+ times
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20 Slides • 21 Questions
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2
3
4
Multiple Choice
How does mitosis contribute to the growth and repair of an organism?
5
Multiple Choice
Which process is responsible for producing identical somatic cells in the human body?
Mitosis
Meiosis
Fertilization
Photosynthesis
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7
8
Multiple Select
Select all statements that are true about gametes and fertilization in humans.
Gametes are produced by meiosis.
Fertilization results in a zygote.
Gametes have the same number of chromosomes as somatic cells.
A zygote has half the number of chromosomes as a gamete.
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10
Multiple Choice
Why do sex cells need to have half the number of chromosomes as the parent cell?
11
Multiple Choice
Why is meiosis important for sexual reproduction?
It produces genetically identical cells
It allows for genetic variation in offspring
It repairs damaged cells
It helps in growth and repair
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13
Fill in the Blanks
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15
Multiple Choice
Which of the following best describes a diploid cell?
A cell with two sets of homologous chromosomes
A cell with only one set of chromosomes
A cell that is always a gamete
A cell that cannot divide
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17
Fill in the Blanks
18
Multiple Choice
What is the main difference between diploid and haploid cells?
Diploid cells have two sets of chromosomes, while haploid cells have one set
Diploid cells are always gametes, while haploid cells are somatic cells
Haploid cells have more chromosomes than diploid cells
Diploid cells cannot undergo cell division
19
Multiple Select
Which haploid and diploid pair is correct?
Haploid - 12
Diploid - 12
Egg (diploid) and embryo (diploid)
Haploid - 12
Diploid - 24
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21
Multiple Choice
Does DNA replication occur before meiosis?
Yes
No
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23
Multiple Select
Which of the following statements about crossing over are correct?
It occurs during Prophase I of meiosis
It results in new combinations of genes
It happens between homologous chromosomes
It produces identical chromatids
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25
Multiple Choice
What is the significance of independent assortment during meiosis?
It increases genetic variation
It ensures chromosomes are identical
It prevents crossing over
It reduces the number of chromosomes
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Multiple Choice
Which process during meiosis ensures that all four daughter cells are genetically unique compared to the parent cell and to each other?
Chromosome reduction
DNA replication
Mitosis
Cell growth
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Multiple Select
Which of the following contribute to genetic variation during meiosis?
Independent assortment
Crossing over
Chromosome reduction
Random fertilization
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Multiple Choice
Crossing Over, Independent Assortment, and chromosome reduction are three processes that happen during Meiosis I and II. What is the main outcome of these processes for the daughter cells?
They are identical to the parent cell
They are genetically unique
They have fewer chromosomes than the parent cell
They do not undergo fertilization
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Open Ended
Describe how random fertilization increases genetic diversity in offspring.
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37
Multiple Choice
Explain how random fertilization contributes to genetic variation in offspring.
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Multiple Choice
Reflecting on both meiosis and mitosis, what is one key difference in their outcomes?
40
Multiple Choice
How does meiosis contribute to genetic diversity in sexually reproducing organisms?
By producing identical daughter cells
By allowing crossing over and recombination
By duplicating chromosomes without division
By preventing chromosome pairing
41
Multiple Choice
If there were 6 chromosomes in the parent cell, how many would be in the daughter cells after mitosis and meiosis?
6 in both mitosis and meiosis
3 in mitosis, 6 in meiosis
6 in mitosis, 3 in meiosis
3 in both mitosis and meiosis
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