Which statement correctly describes single-nucleotide polymorphisms (SNPs)?
a. A SNP locus typically has more than two alleles.
b. SNPs are typically used as markers of a region of the genome.
c. The frequency of the rarer SNP allele must be less than 1%.
d. SNPs are the least common form of human genetic variation.
e. If only two alleles are associated with a SNP, both must have relatively the same frequency in the population.
ANSWER: b
You might also like to view...
The abundant remains of ammonites in Oklahoma indicate that Oklahoma was
A. always a semi-arid grassland. B. once a vast desert with almost no rainfall. C. once a part of a mountain range that has now eroded. D. once covered by a shallow ocean. E. part of a vast tropical forest.
A male accessory organ of the reproductive system that often becomes enlarged, infected, or cancerous in older men is the
A. vas deferens. B. testis. C. prostate gland. D. epididymis. E. bulbourethral gland.
What is the phenotype of an individual who is heterozygous for dimples?
A) Dd B) DD C) dd D) None of the above
The overwhelming majority of infections in the clinical environment are due to _________.
A) prions B) fungi C) viruses D) bacteria