genetic mutation

简明释义

遗传突变;

英英释义

例句

1.Hereditary genetic mutations 遗传性基因突变 can be passed down from parents to children.

遗传性基因突变 genetic mutations可以从父母传给孩子。

2.A recent study found that a specific genetic mutation 基因突变 can increase the risk of developing certain types of cancer.

最近的一项研究发现，特定的基因突变 genetic mutation可能会增加某些类型癌症的风险。

3.The genetic mutation 基因突变 responsible for the disease was identified through extensive research.

通过广泛的研究，识别出导致该疾病的基因突变 genetic mutation。

4.Scientists are investigating how a genetic mutation 基因突变 in fruit flies affects their lifespan.

科学家们正在研究果蝇中的基因突变 genetic mutation是如何影响它们的寿命的。

5.Understanding genetic mutations 基因突变 is crucial for developing personalized medicine.

理解基因突变 genetic mutations对于开发个性化医学至关重要。

作文

Genetic mutations are changes in the DNA sequence of an organism's genome. These alterations can occur due to various factors such as environmental influences, errors during DNA replication, or even inherited genetic traits. Understanding genetic mutation (基因突变) is crucial because it plays a significant role in evolution, biodiversity, and the development of certain diseases. In this essay, I will explore the different types of genetic mutations (基因突变), their causes, and their implications for both individuals and populations.There are several types of genetic mutations (基因突变). The most common types include point mutations, insertions, deletions, and duplications. Point mutations involve a change in a single nucleotide base pair, which can lead to changes in the protein produced by the gene. Insertions and deletions refer to the addition or loss of nucleotides in the DNA sequence, which can disrupt the reading frame and significantly alter the resulting protein. Duplications occur when a section of DNA is copied, leading to multiple copies of a particular gene.The causes of genetic mutations (基因突变) can be categorized into two main groups: spontaneous mutations and induced mutations. Spontaneous mutations arise naturally during DNA replication or due to the inherent instability of certain DNA sequences. Induced mutations, on the other hand, are caused by external factors such as radiation, chemical exposure, or viral infections. Understanding these causes is essential for assessing the risks associated with certain environmental factors and for developing strategies to mitigate their effects.One of the most critical aspects of genetic mutations (基因突变) is their role in evolution. Mutations provide the raw material for natural selection, as they introduce genetic variation within populations. Some mutations may confer advantageous traits that enhance an organism's survival and reproductive success, while others may be neutral or detrimental. Over time, beneficial mutations can become more prevalent in a population, leading to evolutionary changes. This process is fundamental to the adaptation of species to changing environments.In addition to their role in evolution, genetic mutations (基因突变) can also have significant implications for human health. Many genetic disorders are caused by specific mutations in genes that disrupt normal biological functions. For instance, cystic fibrosis, sickle cell anemia, and Huntington's disease are all linked to particular genetic mutations (基因突变). Moreover, understanding the genetic basis of diseases has paved the way for advancements in personalized medicine, where treatments can be tailored to an individual's genetic makeup.Furthermore, genetic mutations (基因突变) can also contribute to the development of cancer. Cancer often arises from a series of mutations that lead to uncontrolled cell growth and division. Research into the specific mutations involved in different types of cancer has led to the identification of potential therapeutic targets and biomarkers for early detection.In conclusion, genetic mutations (基因突变) are a fundamental aspect of biology that affects all living organisms. They are essential for the process of evolution, contribute to the diversity of life, and play a critical role in human health and disease. By studying genetic mutations (基因突变), scientists can gain insights into the mechanisms of evolution and disease, ultimately leading to improved medical treatments and a better understanding of our biological world.