Below is a text with blanks. Click on each blank, a list of choices will appear. Select the appropriate answer choice for each blank.
下面的文本有一些空格。点击每个空格会出现一组选项，请为每个空格选出最合适的答案。
Recently, research into embryonic development has given us an even better insight into how major structural changes might occur in a given population of organisms. We now understand that there are two major types of genes: developmental and ‘housekeeping’ genes. Developmental genes are those that are expressed during embryonic development, and their proteins the symmetry, skeletal development, organ placement, and overall form of the developing animal. , ‘housekeeping’ genes are expressed during the animal's daily life to generate proteins which keep the cells, tissues, and organs in the body functioning properly. you might suspect, mutations in developmental genes can have radical consequences for body form and function, whereas mutations in ‘housekeeping’ genes tend to the health and reproductive success of the post- embryonic animal.
加载中…
我的练习记录
加载中…