Examlex
Xenon gas has been shown to _____ in rats.
Mutation
A change in the DNA sequence of an organism's genome, which can lead to genetic variation and sometimes result in observable changes in the organism.
Zygote
The initial cell formed when a sperm cell fertilizes an egg cell, marking the beginning of pregnancy.
Chromosomes
Chromosomes are thread-like structures located within the nucleus of animal and plant cells, made of protein and a single molecule of deoxyribonucleic acid (DNA), carrying genetic information.
Biological Mother
A woman who has given birth to a child, contributing genetically through ovum to the child's birth.
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