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BIOD 210 Genetics Final Exam
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BIOD 210 Genetics Final Exam
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What are deleterious genes and list one examplealleles 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
List one dominant trait and the corresponding recessive trait
Tomato
Dominant - small fruit
Recessive - large fruit
List pairs of characteristics and the traits (specific phenotypes) of each trait Mendel
studied:
Seed color
yellow, green
List pairs of characteristics and the traits (specific phenotypes) of each trait Mendel
studied:
Flower color
purple, white
List pairs of characteristics and the traits (specific phenotypes) of each trait Mendel
studied:
Seed shape
round, wrinkled
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