homozygous vs heterozygous

deleted gene genome sciences zygosity hemizygous nullizygous learn heredity mendel phenotypes mendelian genetics wild male meiosis research division sister mitosis hybrid difference cycle replication process health manipulation autosomal modification chromosomes chromatid centromere chromatin autosome homologous paternal constitution color egg diploid embryon factor physical characteristics development individual rna therapy evolution environment recessive heterozygous science biology phenotype homozygous education reproduction diagram structure medicine anatomy molecule dna medical parents allele genotype chromosome dominant genetic generation human vector trait inheritance biotechnology species appearance