How can environmental factors influence gene expression?

Environmental factors such as diet, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens can all impact which of an animal’s genes are expressed, which ultimately affects the animal’s phenotype.

What are 3 factors that influence gene expression?

Various factors, including genetic makeup, exposure to harmful substances, other environmental influences, and age, can affect expressivity. Both penetrance and expressivity can vary: People with the gene may or may not have the trait and, in people with the trait, how the trait is expressed can vary.

What are some environmental factors that can influence gene expression quizlet?

What are some environmental factors that can influence gene expression? Temperature, nutrition, light, chemicals, infectious agents, age, and gender/sex.

What kind of environmental factors can cause mutations in gene expression?

Mutations can also occur as the result of exposure to environmental factors such as smoking, sunlight and radiation. Often cells can recognize any potentially mutation-causing damage and repair it before it becomes a fixed mutation. Mutations contribute to genetic variation within species.

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How does environmental factors affect gene expression give some examples related to environmental factors on gene expression?

Drugs and Chemicals

The presence of drugs or chemicals in an organism’s environment can also influence gene expression in the organism. Cyclops fish are a dramatic example of the way in which an environmental chemical can affect development.

What factors affect gene expression?

Various factors, including genetic makeup, exposure to harmful substances, other environmental influences, and age, can affect expressivity. Both penetrance and expressivity can vary: People with the gene may or may not have the trait and, in people with the trait, how the trait is expressed can vary.

Which of the following is an example of environmental impacts on the expression of traits?

Which of the following is an example of environmental impacts on the expression of traits? Animal coat color shifts in response to seasonal changes in day length and temperature.

What influences gene expression by affecting the rate of translation quizlet?

Ribosomes, aminoacyl tRNAs, initiation factors, and elongation factors are all required for the translation of mRNA molecules. The availability of these components affects the rate of translation and therefore influences gene expression.

What type of genes affect other gene expression quizlet?

In the steps, adenine is paired with thymine and guanine is paired with cytosine. Each pair of bases is held together by a hydrogen bond. A gene consists of a sequence of bases. Sequences of three bases code for an amino acid (amino acids are the building blocks of proteins) or other information.

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How do genes interact with environmental factors to affect behavior?

Genes, via their influences on morphology and physiology, create a framework within which the environment acts to shape the behavior of an individual animal. The environment can affect morphological and physiological development; in turn behavior develops as a result of that animal’s shape and internal workings.

What are examples of environmental mutagens?

Various mutagens, which pollute air, water, and food, possibly induce mutations in humans, and are suspected of causing cancer. Environmental mutagens, such as polycyclic aromatic hydrocarbons (PAH) and heterocyclic amines are known to bind to nucleotides, resulting in the formation of DNA adducts.

Which of these is an environmental factor that causes damage to chromosomes?

Radiation is another type of environmental mutagen that may cause direct changes in a cell’s DNA. For instance, ionizing radiation (i.e., X-rays) can break DNA sequences in many places, leading to chromosome rearrangement. Lower-energy radiation, such as UV rays, can also penetrate cellular and nuclear membranes.