Phenylalanine is an amino acid found in all protein-rich foods and even some artificial sweeteners. Phenylalanine build up in the blood affects nerve and brain development. The condition phenylketonuria, or PKU, is caused by the toxic buildup of the amino acid phenylalanine. PKU is caused by a mutation in a gene that affects the breakdown of phenylalanine. The effects of PKU can be reduced by removing foods containing phenylalanine from the diet.
Which statement is true about expressed traits of PKU and environmental factors?
(1 point)
Responses
PKU leads to blood circulation problems in patients, and is caused by the environmental factor of eating phenylalanine foods.
PKU leads to blood circulation problems in patients, and is caused by the environmental factor of eating phenylalanine foods.
PKU leads to nerve and mental problems, and is caused by the environmental factor of eating food that has phenylalanine in it.
PKU leads to nerve and mental problems, and is caused by the environmental factor of eating food that has phenylalanine in it.
PKU leads to blood circulation problems because environmental factors cause phenylalanine to build up in the red blood cells.
PKU leads to blood circulation problems because environmental factors cause phenylalanine to build up in the red blood cells.
PKU leads to nerve and mental problems regardless of environmental factors.
1 answer
The correct statement is:
PKU leads to nerve and mental problems, and is caused by the environmental factor of eating food that has phenylalanine in it.
This aligns with the information in the paragraph that indicates the buildup of phenylalanine affects nerve and brain development, and that the condition can be managed by removing phenylalanine-containing foods from the diet.
