Examlex
Gregor Mendel was a pioneer in the field of __________.
Zygote
The initial cell formed when a sperm cell fertilizes an egg cell, representing the earliest stage of embryonic development.
Chromosomes
Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of deoxyribonucleic acid (DNA), carrying genetic information.
Sperm
The male reproductive cell or gamete, crucial for fertilization of the female ovum.
Semen
The fluid which is ejaculated from the male reproductive system and contains sperm.
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