Without the answer options I cannot tell you the answer exactly, however X linked disorders are found only on X chromosomes and are indicated by a lowercase letter next to the X. Xr would be an example of the notation. A male has one X chromosome and one Y chromosome, where females have two X chromosomes.
The allele combination of a male with an x linked recessive disorder would look something like XrY.
B. liquid! Becuase its Seperational atoms have a Huge Attraction within Heated Atoms..from the Sunlight It then sweats..It starts too Evaperate then later by time it Rains.. Etc "Water Cycle" correct me if im Wrong..
Answer:
Check the explanation
Explanation:
Average weight before selection =2.5 kg
Average weight after selection = 5.5 kg
Average weight in the next generation =3.5kg
= 
R= Mean weight in the next generation - mean weight before selection
= 3.5-2.5 = 1.0
S= Mean weight after selection -mean weight before selection
= 5.5 - 2.5 = 3.0
=
=
= 0.33
It should be the second one it sounds very familiar.