Because they create multiple alleles, mutations can cause D. variations in traits.
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Gene mutations and evolution</h2>
The production of mutations in DNA molecules is known as mutagenesis. Changes in DNA sequence or chromosome rearrangement are just two examples of mutations that can occur in DNA. These mutations can happen on their own, as a result of mistakes made during DNA replication or mitosis. Natural selection requires genetic variety, which is produced by spontaneous mutations.
The process by which populations of organisms change over generations is known as evolution. These modifications are caused by genetic differences. Different features in an organism can be introduced by genetic differences that modify gene activity or protein function. If a characteristic is beneficial and helps an individual survive and reproduce, it is more likely to be handed down to the following generation (a process known as natural selection).
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Answer:
Primarily by increasing the amount of carbon dioxide in the atmosphere by burning carbonaceous materials for energy.
Explanation:
They have also affected parts of the atmosphere by introducing Chloro-fluorocarbons which affect the protective ozone layer and other “Greenhouse gases” that may warm the atmospheric temperature by adsorption of solar energy.
Answer:
GGTACT
Explanation:
GGTACT
CCATGA
In DNA, G pairs with C, and A pairs with T.
Answer: Option A.
Explanation:
Ethnocentrism is a major factor in the divisions among members of different ethnicities, races, and religious groups. It's the belief that one's ethnic group is superior to another.
It is also the evaluation of other cultures according to preconceptions originating in the standards and customs of one's own culture.
Long strands of double-helical DNA fit into the nucleus of a single cheek cell, the double helix is packaged and wrapped around proteins, folded back onto itself and coiled into a compact chromosome. 4.
