Answer: B) Compounds contain two or more elements
Explanation:
mean is all values added together and divided by number if values. mode is most often. median is middle cross from both sides
In the case of a recessive genetic disorder, an individual must inherit two copies of the mutated allele in order for the disease to be present.
Answer:
C. His mother carried at least one allele for that trait
Explanation:
-Men have a single allele of each gene on the X chromosome, inherited from their mother, and a single allele of each gene on the Y chromosome, from their father.
-A sex-linked trait is a trait that is controlled by a gene or an allele located on the sex chromosome.
-X-linked traits are maternally inherited from carrier mothers or from an affected father. Each son born to a carrier mother has a 50% probability of inheriting the X-chromosome carrying the mutant allele.
