9+10=21
Gametes carry genes that determine the sex of an offspring.
DNA chromosomes
9+10=21
The asnser is "alleles" and your welcome diego-erick
Men do they are the carriers of the X and Y chromosome. Girls only have X chromosomes. Two X chromosomes mean it will be a girl and a X and a Y mean it will be a boy.
the answer is DNA chromosomes.
The sex of the offspring.
They carry genes that determine whether a person is a male of female. They also carry genes that determine other traits.
The male
Units of heredity that are transferred from a parent to offspring and are held to determine some characteristic of the offspring.
The Sex chromosomes
2 sex chromosomes in male-xx in female-xy