Answer:
The cell membrane is permeable to small solutes to let them easily diffuse in and out of the cells.
The BRCA 1 and BRCA 2 genes are two genes that are sought in the genetic study of an individual in order to seek a predisposition to breast cancer (in women and also in men).
The genes of Tay-sachs, are researched in order to diagnose or eliminate Tay-sachs disease.
The first difference lies in the goal of the research: for the BRCA (screening) genes, a predisposition is sought and for the Tay-sachs genes, it is sought to confirm the disease.
The second lies in the technique used:
The first step in the study of these genes is to isolate and replicate them. The best technique for this is the PCR (polymerase chain reaction). By using primers we can amplify the gene we want. So the primers used in BRCA and Tay-Sachs research are necessarily different.
Answer:
The scientific name for the honey bee is Apis mellifera. Identification of Insects and their Relatives: Insects are part of the phylum of animals called Arthropoda. All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages.
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The appropriate answer is A. it may introduce new bacteria to the system. Biotechnology involves the use of living organisms in innovative ways to get a beneficial outcome. Biotechnology is often used in agriculture, medicine and a host of other fields.
B. is an inappropriate answer because it specifies the use of chemicals and not living organisms.
