My answer to the question is option A and B.
Answer:
Dan is a biotechnology R&D professional who studies the chemical makeup of plants as well as animals. Dan is a <u>biochemist</u>.
Explanation:
A biochemist is the professional specialist with solid training in biological chemical sciences, trained to develop analytical and advisory activities related to chemical-biological aspects. She / he studies the chemistry of the life of living beings; that is to say, it tries to describe the structure, organization and functions of living matter. The Biochemist is capable of applying at a productive level the fundamentals and principles of clinical analysis to obtain and preserve biological samples, be they clinical or of another origin (environmental, nutritional, or of animal, plant and microbiological, natural or genetically modified species) and design, execute, and interpret chemical analysis results. A biochemist can exercise the technical direction of laboratories where chemical and biological analyzes of clinical, toxicological, environmental, nutritional, biotechnological interest and related areas are carried out, whether they are directed to the provision of services or research.
Answer:
maybe your just clumsy :/ but it ok it normal
Answer:
In the case of HIV-1, this loss-of-function mutation has proven to be beneficial.
Explanation:
Loss-of-function mutations are those that result in a gene product that has less or no function compared to the unmutated gene. When the allele completely loses function, (null allele), it is called an amorphous mutation. Phenotypes associated with these mutations are usually recessive, except when the organism is haploid, or when the reduced dosage of the normal gene is not sufficient to produce a normal phenotype (this phenomenon is called haploinsufficiency).
As mentioned earlier, this type of mutation results in a defective gene, but the text shown in the above question shows an example of a beneficial loss-of-function mutation because this mutation provides resistance to HIV-1 infection.
