中国大学MOOC: Genetic engineering manipulates gene products at the level of the
举一反三
- 中国大学MOOC: Recessive alleles form no gene products, and thus are not expressed.
- A gene knock-in (or knock-in) refers to a genetic engineering method that involves the one-for-one substitution of DNA sequence information in a genetic locus or the insertion of sequence information not found within the locus. A gene knock-in therefore can be seen as a gain of function mutation and a gene knockout a loss of function mutation, but a gene knock-in may also involve the substitution of a functional gene locus for a mutant phenotype that results in some loss of function.
- 基因工程抗体（genetic engineering antibody）
- Which of the following is a benefit of genetic engineering to humans?
- Happiness is _________.( ) A: genetic B: genes C: genetics D: gene