What are gametes,chromosomes,DNAs,zygote and embryo And what are the functions of all these ?

Gametes are haploid reproductive cells that unite during sexual reproduction to form a new cell called a zygote. In humans, male gametes are sperms and female gametes are ova (eggs).

Zygote  is a diploid cell resulting from the fusion of two haploid gametes.

 

Embryo is an animal organism in the early stages of growth and differentiation. In humans, embryo is an unborn human baby, esp. in the first eight weeks from conception, after implantation but before all the organs are developed.

 

Chromosomes are thr?e?a?d?l?i?k?e? linear strand of DNA and associated proteins that carries th??e genes and functions in the transmission of hereditary information??.? ??T?h?e?y? ?a?r?e? ?l?o?c?a?t?e?d? ????in the nucleus of eukaryotic cells.

DNA i.e. Deoxyribonucleic acid is a long linear double helical polymer found in the nucleus of a cell and formed from nucleotides. It is associated with the transmission of genetic information.?