Answer:
Number and variety of living organisms; includes genetic, species, and ecological types.
Explanation:
Biodiversity is the number and variety of living organisms. This includes genetic, species, and ecological types.
Most bacteria are heterotrophic decomposers, which means they depend on other organisms for food and feed on dead matter.
Answer:
Action potentials from different sensory modalities are carried on different nerve tracts.
Explanation:
Action potential in the cells occur upon the stimulation of the signal. The action potential results in the change in the membrane potential of the cell and responsible for the transmission of nerve impulse.
Different sensory receptors are present on brain to sense the different action potentials of the body. The different sensory modalities are used for the different nerve tracts and information flows occur in the body in the specific area.
Thus, the correct option is (a).
Answer:
- acceptable for biochemical pathway to remain unknown
- identifies novel candidate genes for a disease
- allows for large sample sizes with a limited budget
- identifies DNA elements that flank a variant
Explanation: Genome wide association studies (GWAS) are a relatively new approach to analyzing genetic sequence and have quickly become a fundamental part of modern genetic studies. Their purpose is to determine alleles that correlate to different diseases and traits.
GWAS focuses on SNPs. The modern unit of genetic variation is the single nucleotide polymorphism or SNP. SNPs are single base-pair changes in the DNA sequence that occur with high frequency in the human genome, inother words, the single nucleotide sites that differ between individuals. By studying SNPs, researchers can analyze a few hundred thousand nucleotides rather than the 3 billion nucleotides that compose the human genome. The basic design of a GWAS is simple and begins by dividing participants into two groups:
* People with a disease/trait of interest
* People without a disease/trait (control group)
What statements??? There is nothing there