Which statement describes the relationship between chromosomes, genes, and alleles?
a.
alleles cause mutations, which are genes on part of a chromosome.
b.
alleles are different variations of a gene. genes are the specific sections of a chromosome.
c.
genes bind to sites on a chromosome. these sites are called alleles.
d.
alleles move genes to a specific location on a chromosome.

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water