3. Use the Punnett square below to show the segregation of human sx chromosomes in the formation of gametes. Fill in the square showing all possible crosses. Give the phenotype (sx) of the offspring. Sx: Sx: Sx: Sx: 4. A mating of a pair of fruit flies produces 300 offspring. Approximately how many males an how many females will there be in this group?

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.

the principle of segregation describes how pairs of gene variants are separated into reproductive cells. from his data, mendel formulated the principle of segregation. we now know that the segregation of genes occurs during meiosis in eukaryotes, which is a process that produces reproductive cells called gametes.