This map shows how climate change might affect precipitation patterns in the great plains of the united states by the end of this century
brown shows a decrease in precipitation, and blue shows an increase. the maps differ based on the predicted levels of greenhouse gas
emissions
the maps show that northem areas should get
a. more precipitation? regardless of emission levels
b. less precipitation, regardless of emission levels
c. more precipitation, but only when emissions levels are high
d. less precipitation, but only when emission levels are low
southern areas will likely get
a. more precipitation, regardless of emission levels
b. less precipitation, regardless of emission levels
c. more precipitation, but only when emissions levels are high
d. less precipitation, but only when emission levels are low
to use these maps to prepare for natural disasters in the great plains,
scientists need to ask,
a. how many tons of emission were used as the bias for each map
b. which types of fossil fuels are used in great plains
c. which cities and counties will experience no change in precipitation
d. how can we protect people and property in the event of a flood or a drought

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.