the process that occurs in the formation of sex cells by which the number of chromosomes is reduced by half cell division in which both cells have the same number and type of chromosomes Reproductive cells threadlike structures made of DNA molecules that contain the genes a sequence of dna that determines a trait and is passed by parent to offspring the different forms of a gene an allele who's trait always shows up in the organism when the allele is present An allele that is masked when a dominant allele is present a person who has one recessive allele for a trait and one dominant allele An organism that has two different alleles for a trait

1. meiosis

the process that occurs in the formation of sex cells by which the number of chromosomes is reduced by half

2. mitosis

cell division in which both cells have the same number and type of chromosomes

3. Gametes

Reproductive cells

4. chromosomes

threadlike structures made of DNA molecules that contain the genes

5. genes

a sequence of dna that determines a trait and is passed by parent to offspring

6. alleles

the different forms of a gene

7. Dominant Allele

an allele who's trait always shows up in the organism when the allele is present

8. recessive allele

An allele that is masked when a dominant allele is present

9. carrier

a person who has one recessive allele for a trait and one dominant allele

10. hybrid

An organism that has two different alleles for a trait