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Genetics Final Exam (Final exam for Pittcock Genetics) Questions and Correct Answers (Verified by Expert)

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Genetics Final Exam (Final exam for Pittcock Genetics) Questions and Correct Answers (Verified by Expert) What are deleterious genes and list one example ✔✔ alleles whose phenotype results in ... significantly reduced fitness of an animal; Dexter cattle - short legs Genetics ✔✔ The scientific study of heredity and hereditary variation. Gregor Mendel is often referred to as ✔✔ "Father of Genetics" What plant did Gregor Mendel study? ✔✔ peas Why was Mendel more successful than other researchers? (what were they looking for or at differently) ✔✔ 1. Picked easy organism to experiment 2. Picked plant that was diploid 3. Picked traits that were simply inherited 4. Mendel looked at traits separately Define genetic improvement and list 3 examples ✔✔ The betterment of an organism; 1. bigger 2. smaller 3. faster 4. hairless 5. quicker weight gain Who created the term "genetics?' ✔✔ William Batesone What is a chromosome? ✔✔ a DNA molecule composed of RNA and proteins to form a threadlike structure; only visible during meiosis and mitosis (contains the genes) What is located on a chromosome? ✔✔ genes What is the appearance of the structure of a DNA strand? ✔✔ double helix Define DNA ✔✔ Genetic material makes up a gene and then makes up a chromosome List the bases that make up DNA ✔✔ Adenine Guanine Cytosine Thymine What DNA bases are paired together? ✔✔ Adenine - Thymine Cytosine - Guanine List one dominant trait and the corresponding recessive trait Cattle ✔✔ Dominant - polled Recessive - horned List one dominant trait and the corresponding recessive trait Chickens ✔✔ Dominant - feathered shanks Recessive - clean shanks List one dominant trait and the corresponding recessive trait Horses ✔✔ Dominant - smooth hair Recessive - curly hair List one dominant trait and the corresponding recessive trait Dogs ✔✔ Dominant - wire hair Recessive - smooth hair List one dominant trait and the corresponding recessive trait Cats ✔✔ Dominant - short hair Recessive - long hair [Show More]

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