HEREDITARY FACTORS AND ABNORMALITIES

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16 Terms

1
Heredity
The study of how traits are passed from parents to offspring in genetics.
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2
Gene mutation
A change in the DNA sequence that may lead to genetic abnormalities.
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3
Teratogenic

An agent or factor that can cause structural or functional birth defects in a developing fetus.( caused by sanitation chemicals)

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4
Congenital abnormalities
Malformations present at birth that involve specific organs or parts of an animal's body.
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5
Cyclopia
A birth defect where the front part of the brain does not separate into two hemispheres, resulting in a single eye.
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6
Free Martin
A female twin of a male calf that becomes masculinized and sterile.
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7
Congenital hypotrichosis
An ectodermal dysplasia condition leading to hair loss and intolerance to cold in cattle.
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8
Cryptorchidism
A condition where one or both testicles fail to descend into the scrotum.
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9
Genotype
The actual genetic makeup of an individual.
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10
Phenotype
The observable physical traits of an individual.
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11
Dominant gene
A gene that overshadows the expression of another member of the gene pair.
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12
Recessive gene
A gene that is masked or overshadowed in the presence of a dominant gene.
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13
Homozygous
Referring to gene pairs that are alike (e.g., BB).
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14
Heterozygous
Referring to gene pairs that differ (e.g., Bb).
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15
Anencephaly
A condition characterized by the absence of a major portion of the brain.
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16
Atresia ani
A congenital defect in which the anus fails to communicate with the hindgut.
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