Answer:
A hypothesis is a limited explanation of a phenomenon; a scientific theory is an in-depth explanation of the observed phenomenon. A law is a statement about an observed phenomenon or a unifying concept.
mitochondria are present in both plants and animals which provides energy for respiration and metabolism.
Genetic variation in a population allows for phenotypic variation, meaning that different traits exist in the same population. When the environment changes, the members of the population are tested by natural selection with regards to how well adapted their specific traits are to the new environment. If the traits they have do not suit their environment, this results in reduced survival and fitness, leading to less of that trait in the population. However, if the traits they have are adapted to the environment, they become naturally selected for with better survivability and fitness (leading to a higher frequency of that trait in the population). Thus, evolution has occurred.
Answer:
This statement is best described by the option B. The recombinant DNA produced by the combination of a vector and gene of interest in the E.coli which produces multiple copies of this recombinant DNA along with the chromosomal DNA and expresses the gene.
Explanation:
In genetic engineering, the gene of interest is combined with a vector e.g. plasmid and inserted into the most suitable carrier for these recombinants. This carrier acts as the manufacturing unit for the gene of interest as it produces multiple copies when it replicates in a short period of time. E.coli is considered to be one of the best manufacturing units in the field of genetic engineering as it has a very flexible replication time.
Answer b is the best example
