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Principles Of Genetics Quiz 27 (30 MCQs)

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1. Which of the following is NOT one of Mendel's three principles of heredity?
2. 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?
3. An ..... is one member of a pair of genes from either parent that controls a certain characteristic.
4. 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?
5. The parental genotypes (Gg and gg) can be described as being .....
6. An organism's characteristics are referred to as .....
7. How might a geneticist look at the vast numbers of genes in a human?
8. Suppose a white-furred rabbit breeds with a black-furred rabbit and all of their offspring have a phenotype of gray fur. What does the gene for fur color in rabbits appear to be an example of?
9. Genetic information is stored in which part of the cell?
10. What is it called when two forms of a trait are both dominant at the same time?
11. When Mendel crossed purebred pea plants having green pods with purebred pea plants having yellow pods, the offspring were .....
12. If all four offspring are heterozygous or hybrid, what are the genotypes of the parents?
13. A cross of a black chicken (BB) with a white chicken (WW) produces all speckled offspring (BBWW). This type of inheritance is known as
14. The study of biological inheritance patterns and variation of organisms is called
15. Gregor Mendel studied the inheritance of traits in pea plants. One trait he examined was the height of the plant. Pea plants with the dominant 'T' allele grew tall, and pea plants with the recessive allele 't' were short. According to Mendel's principles of heredity, if a homozygous tall pea plant was crossed with a homozygous short pea plant, approximately how many of their offspring would have the short phenotype?
16. The process of alleles separating during gamete formation is related to what?
17. What are gametes?
18. If smooth seeds are dominant to wrinkled, what percentage of the offspring are hybrid when a purebred smooth is crossed with a purebred wrinkled?
19. In pea plants, the purple trait is dominant. If a purebred purple plant crosses with a hybrid purple plant, the offspring will be .....
20. Human skin color is an example of what type of inheritance?
21. The process of transfer of hereditary character from one generation to another is known as .....?
22. Having a pair of identical alleles
23. Having different alleles for a trait
24. Mendel's work on garden pea plants resulted in the discovery that
25. Both traits are present in hybrid offspring, but without blending.
26. A ..... organism is the offspring of many generations of organisms that have the same trait.
27. Synonymous (same) name for heterozygous:
28. In a Punnett square, all four predicted offspring are heterozygous where brown fur is dominant over white. Which statement is true?
29. When Gregor Mendel crossed a tall plant with a short plant, the F1 (offspring) plants inherited
30. A pedigree CAN be used to
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