Why Is height a good example of polygenic inheritance?
Height is a polygenic trait, it is controlled by at least 3 genes. Individual height varies and has a wide... View Article
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Which example exemplifies pleiotropy best?
Phenylketonuria is an example of pleiotropy. It is a metabolic disorder, which occurs due to a defective gene for the... View Article
What is the difference between pleiotropy and polygenic inheritance?
Pleiotropy refers to the single gene having multiple phenotypic expressions, whereas polygenic inheritance refers to a trait being controlled by... View Article
What is pleiotropy give example?
Pleiotropy is a condition in which a single gene has multiple phenotypic expressions. E.g. Phenylketonuria is caused by a single... View Article
Can phenylketonuria be detected before birth?
Yes, phenylketonuria can be detected before birth by doing prenatal tests such as amniocentesis and chorionic villus sampling. Further reading:... View Article
How is phenylketonuria treated?
Phenylketonuria is treated by adjusting diet by limiting the intake of protein, rich in phenylalanine. Further reading: Polygenic Inheritance Chromosome... View Article
What happens when phenylalanine accumulates in the body?
When phenylalanine accumulates, it gets converted into phenyl pyruvic acid and other derivatives. It results in brain damage, seizures and... View Article
How does phenylketonuria affect the brain?
Phenylketonuria causes irreversible damage to the brain and results in mental retardation. It occurs due to the accumulation of phenylalanine... View Article
What foods should you avoid if you have PKU?
If you have PKU or phenylketonuria, foods rich in phenylalanine should be avoided. People with phenylketonuria cannot metabolise phenylalanine due... View Article
How is phenylketonuria passed on?
Phenylketonuria is an autosomal recessive trait so a diseased child inherits two copies of the defective gene, one from each... View Article
What part of the body does phenylketonuria affect?
Phenylketonuria affects the brain. Accumulation of phenylalanine leads to mental retardation. Further reading: Polygenic Inheritance Chromosome Structure Molecular Basis Of... View Article
What causes phenylketonuria?
Phenylketonuria is caused due to the lack of an enzyme that converts phenylalanine into tyrosine, i.e. phenylalanine hydroxylase. It is... View Article
What do two lines on a pedigree mean?
Two lines on a pedigree mean mating between related individuals, who share the common ancestor, i.e. consanguineous mating. Further reading:... View Article
What genotype means?
Genotype refers to the genetic constitution of an organism. It tells about the different alleles present in an organism. Further... View Article
What allele means?
An allele is a different variant or mutant form of a gene. Further reading: Polygenic Inheritance Chromosome Structure Molecular Basis... View Article
What are the main modes of inheritance?
The main modes of inheritance are autosomal dominant, autosomal recessive, sex-linked dominant and sex-linked recessive. Further reading: Chromosome Structure Molecular... View Article
Is Circle male or female in pedigree?
In the pedigree analysis, a circle is used for females and a square is used for males. Further reading: Chromosome... View Article
What is pedigree analysis and why it is important in genetics?
Pedigree analysis refers to the analysis of inheritable genetic traits in several generations of a family. It is done to... View Article
What is the first plant hormone?
The first plant hormone discovered was auxin. Also Check: How Does Ethylene Ripen Fruit? How does cytokinin affect plant growth?... View Article
Does active transport require a carrier protein?
Yes, active transport requires carrier protein. Also Check: What Are 2 Types Of Active Transport? Is Osmosis Active Or Passive... View Article
