13. Before a cell divides, an exact copy of each chromosome is made by the process of
A) genetic engineering
B) replication
C) mutation
D) recombination

Explain how the political influence of african americans leaders became weaker.

What is the difference between sex-linked traits and autosomal traits in humans? a. sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex. b. sex-linked traits are passed on through the x and y chromosomes, while autosomal traits are passed on through the other 22 chromosomes. c. sex-linked traits only affect females, while autosomal traits affect both males and females. d. sex-linked traits refer to genes that are on the x and y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.

Can someone i have no idea of how to do this.