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Principles Of Genetics Quiz 26 (30 MCQs)

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1. What is a tetrad?
2. What is NOT a principle of genetics?
3. Gametes are produced by the process of
4. Two true-breeding parents are crossed similar to Mendel's P generation. A tall plant (TT) is crossed with a short plant (tt). What is the expected outcome for the F1 generation?
5. Instructions for an inherited trait
6. A couple, with the genotypes:XH XhandXH Yhave children. If Xh is hemophilia, will any of the male offspring be hemophiliacs?
7. The genetic makeup of an organism
8. A tool used to predict the possibility of offspring
9. Why can the principles of probability be used to predict the outcomes of genetic crosses?
10. Two copies of each hereditary factor segregate so that offspring acquire one factor from each parent
11. The purpose of a car engine is to transform the chemical energy of gasoline into kinetic energy of the car in motion. Gasoline is burned in the engine to create that movement. However, gasoline engines are typically only about 20% efficient. What happens to the rest of the energy released from the burning gasoline?
12. At fertilization, what happens to the sex cells
13. Mendel observed during his experiments that being tall didn't automatically mean that the plants would have green pods and that green pods didn't have to be filled only with wrinkled seeds. Into which principle did he translate these observations?
14. An organism's ..... is inherited from its parents.
15. In screech owls, red feathers(R) are dominant over gray feathers (r). If two hybrid red-feathered owls are mated, what percentage of their offspring would be expected to have red feathers?
16. What did Mendel use pea plants to study?
17. How many alleles can a person have
18. How can you be sure of getting the expected 50:50 ratio from flipping a coin?
19. In dogs, the allele for short hair is dominant over the allele for long hair. Two short-haired dogs are the parents of a litter of eight puppies. Six puppies have short hair, and two have long hair. What are the genotypes f the parents?
20. Having two different genes for a trait (sometimes called hybrid).
21. Genetic traits are determined by one or more
22. Which of Mendel's laws states that alleles are distributed to gametes independent of one another?
23. What is another name for "true breeding?"
24. Normal red blood cells slide easily through narrow blood vessels. In sickle cell disease, many red blood cells change to a crescent shape like a slender moon. Crescent-shaped blood cells cause blockages in blood vessels. These blockages decrease the transport of oxygen. People with sickle cell disease often have sharp pains due to the lack of oxygen in parts of the body.The sickle cell version of the gene that causes sickle cell disease is recessive. Suppose that two parents with no symptoms have a child with sickle cell disease. What genes did the child inherit from the parents?
25. The gene makeup of an organism for a particular trait is known as its
26. What phenotype would result from crossing a homozygous dominant purple-flowered pea plant with a homozygous recessive white-flowered pea plant?
27. What is the random change in the ratio of alleles in a population over time?
28. The genetic material of all organisms; made up of two twisted strands
29. What is the longest stage of the cell cycle called; in other words, in which stage does a cell spend most of its life?
30. Which process is used to make mRNA from the DNA in the nucleus?
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