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Principles Of Genetics Quiz 41 (20 MCQs)

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1. What did Mendel use pea plants to study?
2. How many alleles can a person have
3. How can you be sure of getting the expected 50:50 ratio from flipping a coin?
4. 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?
5. Having two different genes for a trait (sometimes called hybrid).
6. Genetic traits are determined by one or more
7. Which of Mendel's laws states that alleles are distributed to gametes independent of one another?
8. What is another name for "true breeding?"
9. 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?
10. The gene makeup of an organism for a particular trait is known as its
11. What phenotype would result from crossing a homozygous dominant purple-flowered pea plant with a homozygous recessive white-flowered pea plant?
12. What is the random change in the ratio of alleles in a population over time?
13. The genetic material of all organisms; made up of two twisted strands
14. What is the longest stage of the cell cycle called; in other words, in which stage does a cell spend most of its life?
15. Which process is used to make mRNA from the DNA in the nucleus?
16. Which of the following is NOT one of Mendel's three principles of heredity?
17. In horses, the grey coat color (G) is dominant to non-grey coat color (g). Additionally, some horses have a genetic disorder called hyperkalemic periodic paralysis or HYPP. HYPP is an inherited autosomal dominant disorder that affects the sodium channels in muscle cells. HYPP (H) is dominant to the normal condition (h). If a non-grey, normal stallion sires a foal that is not grey and does not have HYPP, which of the following genotypes are possible genotypes for the mother?
18. An ..... is one member of a pair of genes from either parent that controls a certain characteristic.
19. In humans, C genes only give you curly hair. S genes only give you straight hair. If you are a heterozygote then you have wavy hair. Parent 1:Curly HairParent 2:Straight HairWhat are the phenotypes of the offspring from the square?
20. The parental genotypes (Gg and gg) can be described as being .....
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