Scientific knowledge must be supported by evidence. an idea that is not supported by evidence but is made to appear scientific in order to make people think it is a part of science is called pseudoscience. pseudoscience cannot be considered scientific because pseudoscientific ideas lack evidence. which of the following ideas is considered scientific? a. the way the stars are positioned can be read to know the future. b.bigfoot lives in the forest and travels around the u.s. c. genes are made up of dna and affect how an organism looks. d. crop circles are made in fields by alien organisms.

Scientific knowledge must be supported by evidence and here's an option C is considered scientific because it is followed by evidence.

Genes are mad of DNA and affects how an organism look because organism’s phenotype is determined by its genotype which is the set of genes the carries, as well as by environmental influences upon these genes. Phenotype also includes observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.

The correct answer will be option-C.

Explanation:

Pseudoscience is the scientific practice performed based on the belief system and forced to be believed as scientific. The pseudoscience is not considered scientific as it is the result of the belief system and only so-incidences at right time supports the practice but lacks scientific data.

In the given question, the case of genes and DNA can be considered a scientific case as the discoveries and inventions related to the genes and DNA are based on the scientific methods which provided enough evidence to support the system. The results through scientific methods hold true still.

Thus, Option-C is the correct answer.

SNPs have shown that only 0.1 % of DNA sequences are different in the human genome between different individuals, thereby all the inherited phenotypic variation observed in our species is associated with only 0.1 % of differences at the genome level  

Explanation:

Haplotypes are block-like sequences of DNA that are inherited together due to low recombination rates. Moreover, single-nucleotide polymorphism (SNP) mapping is a very useful methodology used to map the site of SNP mutations (i.e., SNP variants). In this regard, it has been observed that there are approximately 10 million common SNPs in the human genome. These SNPs contribute to the wide range of phenotypic variation observed in human populations for different traits (e.g., eye color, hair, weight, height, etc). Moreover, researchers have determined that SNPs can be clustered into haplotypes, thereby haplotypes can be accurately sampled by as few as approx. 300,000 selected SNPs, which are sufficient to represent all of the genetic variation across different human genomes.