Genetics Final Exam Questions and Answers CORRECT 100%
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Course
Genetics
Institution
Genetics
Genetics Final Exam Questions and Answers CORRECT 100%Genetics Final Exam Questions and Answers CORRECT 100%Genetics Final Exam Questions and Answers CORRECT 100%Genetics Final Exam Questions and Answers CORRECT 100%What are deleterious genes and list one example - ANSWER alleles whose phenotype re...
Genetics Final
Exam
Questions and
Answers
CORRECT 100%
,What are deleterious genes and list one example - ANSWER alleles whose phenotype results in
significantly reduced fitness of an animal; Dexter cattle - short legs
Genetics - ANSWER The scientific study of heredity and hereditary variation.
Gregor Mendel is often referred to as - ANSWER "Father of Genetics"
What plant did Gregor Mendel study? - ANSWER peas
Why was Mendel more successful than other researchers? (what were they looking for or at differently) -
ANSWER 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 - ANSWER The betterment of an organism;
1. bigger
2. smaller
3. faster
4. hairless
5. quicker weight gain
Who created the term "genetics?' - ANSWER William Batesone
Traits are affected by genes and what other factor? - ANSWER environment
Explain what a mutant is at the DNA level. - ANSWER change in base sequence in DNA
, What is wild-type? - ANSWER non-mutant (normal)
In sickle-cell anemia (disease where pleiotrophy occurs), what is the mutant substitution? - ANSWER T-A
instead of A-T
What trait does epistasis primarily effect? - ANSWER color
Explain epistasis of tomatoes (Yellow fruits and red fruits). - ANSWER dominant genes are both required
to produce red color; at least one dominant of each gene - can not be from just one gene
What is a chromosome? - ANSWER 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? - ANSWER genes
What is the appearance of the structure of a DNA strand? - ANSWER double helix
List one dominant trait and the corresponding recessive trait
Tomato - ANSWER Dominant - small fruit
Recessive - large fruit
List pairs of characteristics and the traits (specific phenotypes) of each trait Mendel studied:
Seed color - ANSWER yellow, green
List pairs of characteristics and the traits (specific phenotypes) of each trait Mendel studied:
Flower color - ANSWER purple, white
List pairs of characteristics and the traits (specific phenotypes) of each trait Mendel studied:
Seed shape - ANSWER round, wrinkled
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