Why are males more likely than females to have an X-linked disorder? O Males are unable to inherit the dominant allele for sex-linked traits.
O Males always express the recessive allele, even when a dominant allele is present.
Males have two X chromosomes; thus, there is a greater chance of them inheriting a recessive
allele.
Males have only one X chromosome; thus, if a recessive allele is inherited, it is always expressed.

Why was the sample heated in step 5? describe the chemical principles involved in the reasoning behind this step?

Structures in cells that carry out specific functions.

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.