Which describes meiosis II?
Every chromosome in the parent cell is copied.
The chromosomes pairs move to opposite ends of the cell.
Two new cells are formed with half the number of chromosomes.
The chromosomes move to the center of the cell.
Genes are carried on _____.
chromosomes
alleles
cells
traits
When sex cells combine to produce offspring, each sex cell will contribute _____.
the normal number of chromosomes in body cells
one-fourth the number of chromosomes in body cells
half the number of chromosomes in body cells
twice the number of chromosomes in body cells
How many chromosomes are in the body cells of grasshoppers?
12
6
48
24
What is a mutation?
any change that is helpful to an organism
any change that is harmful to an organism
any change in a gene or chromosome
any change in the phenotype of a cell
3 answers