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Question 1 of 21
1. Question
During which phase of the cell cycle does the cell duplicate its DNA (and chromatids)?
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Question 2 of 21
2. Question
What organelle produces the spindle fibers that move the chromosomes during mitosis?
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Question 3 of 21
3. Question
A mass of body cells that grows and divides uncontrollably, but is encapsulated within a layer of connective tissue and does not spread is called a:
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Question 4 of 21
4. Question
Which of the following is NOT an advantage of asexual reproduction compared to sexual reproduction?
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Question 5 of 21
5. Question
Mitosis occurs in _______________, while meiosis occurs in _________________.
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Question 6 of 21
6. Question
A spermatogonium (stem cell) undergoes mitosis. What are the products?
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Question 7 of 21
7. Question
How is meiosis different in oocytes compared to spermatocytes?
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Question 8 of 21
8. Question
During which stage in meiosis does the crossing over of chromosomes occur?
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Question 9 of 21
9. Question
Homologous chromosomes are…
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Question 10 of 21
10. Question
Much of the modern understanding of heredity began with Gregor Mendel studying pea plants. One ______________ of the plants he studied was seed texture, with the two possible ________ being wrinkled and smooth.
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Question 11 of 21
11. Question
What does it mean for a plant to be true breeding for purple flower color?
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Question 12 of 21
12. Question
If you wanted to perform a test cross with the individuals in generation C to determine which are homozygous dominant and which are heterozygous, what kind of plant would you breed them with?
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Question 13 of 21
13. Question
Which generation in this set of crosses would be considered the F2 generation?
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Question 14 of 21
14. Question
Which of these generations contains only heterozygous individuals for seed texture?
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Question 15 of 21
15. Question
What percentage of generation C would you expect to have a homozygous dominant genotype?
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Question 16 of 21
16. Question
Two dogs of a certain breed are crossed. The mother has a long tail, and the father has a short tail. All the offspring have medium-length tails. When two medium-length dogs are bred, ¼ of the offspring have long tails, ½ have medium tails, and ¼ have short tails. What pattern of inheritance is shown here?
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Question 17 of 21
17. Question
A different breed is crossed, this time with a father having black fur and a mother having brown fur. All the offspring are brindle, meaning it grows both black and brown hairs in an alternating pattern. What pattern of inheritance is this?
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Question 18 of 21
18. Question
Male-pattern baldness (b) is a recessive sex-linked trait. What would the genotype of a normal female and carrier female look like?
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Question 19 of 21
19. Question
If a normal male and a carrier female had children, what percentage of their boys would have male-pattern baldness?
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Question 20 of 21
20. Question
The Law of Independent Assortment states that two genes will independently separate during meiosis, resulting in the different possible combinations of sperm or eggs produced by the parent. Which of the following must be TRUE for the law to hold?
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Question 21 of 21
21. Question
EXTRA CREDIT QUESTION:
Which of these is the smallest level of organization that still has all the characteristics of life?
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