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Give two examples of how an environmental factor can affect the expression of a phenotype?
Wiki User
∙ 13y ago
1. When skin is exposed to UV light, the epidermis (outermost layer of skin) thickens to protect against damage. The melanocytes increase the amount of melanin they produce, which means the skin darkens. This explains why staying out in the sun longer results in a tan. Melanin absorbs UV light and helps prevent the UV light from damaging skin cells and other tissue below the skin.
Large amounts of UV light can also damage DNA, which then changes the chemicals that the cells produce. These chemical changes result in the physical changes that our eyes see, including burning, skin aging, and wrinkles.
2. The amount of nitrogen in soil affects plant growth. Nitrogen promotes growth and increases plant mass of trees. Thus, nitrogen fertilizers have been used around the world by farmers to increase plant production. Plants take in nitrogen in the form of nitrate and ammonium from the soil. The nitrogen helps plants use carbohydrates for energy and controls how plants function. Nitrogen even helps the plants make protein to keep them healthy.
When plants do not have enough nitrogen, their stems become weak and thin. Older leaves become yellow. When plants have too much nitrogen, there is plentiful leaf growth. Plants may also taste different because the extra nitrogen causes the plants to different amounts of vitamins and sugar.
Wiki User
∙ 13y ago
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What environmental factor such as hormone that might affect organism's phenotype?
The type of environmental factor, such as the presence of a hormone, that might affect an organism's phenotype is internal
What is a example of a environmental effect on phenotype?
An example would be mental retardation caused by an expectant mother's alcohol abuse.
How can environment affect phenotype?
Things like amount of sunlight, eating habits and exercise from your environment can affect your phenotype.
What best describes the factors that affect a phenotype?
The genotype and the environment both affect a phenotype.
Explain how interactions between genes and the environment can affect phenotype-?
For example: The sex of sea turtles relies on the temperature of the environment. In cooler temperatures the egg matures to a male, in warmer temperatures the egg matures into a female.
What environmental factor such as hormone that might affect organism's phenotype?
The type of environmental factor, such as the presence of a hormone, that might affect an organism's phenotype is internal
What is a example of a environmental effect on phenotype?
An example would be mental retardation caused by an expectant mother's alcohol abuse.
What best describes a factors that affect a phenotype?
The genotype and the environment both affect a phenotype.
Do mutations affect phenotype or genotype?
genotype always...phenotype sometimes
How can environment affect phenotype?
Things like amount of sunlight, eating habits and exercise from your environment can affect your phenotype.
What best describes the factors that affect a phenotype?
The genotype and the environment both affect a phenotype.
Explain how interactions between genes and the environment can affect phenotype-?
For example: The sex of sea turtles relies on the temperature of the environment. In cooler temperatures the egg matures to a male, in warmer temperatures the egg matures into a female.
Which bests describes the factors that describe a phenotype?
(Apex Learning) The genotype and the environment both affect phenotype.
Which two main factor work together to affect an organism's phenotype?
Genes and environment are the two main factors that work together to affect an organism's phenotype.
What are Environmental factors that affect a business?
how environmental factors affect in business
Mutations in introns are less likely to affect phenotype then mutation in exons?
mutation in exons are less likely to affect phenotype then mutation in introns because mutaion in exons are silent mutation
What are the three ways natural selection can affect the distribution of phenotype?
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