In four o'clock flowers, red petals show incomplete dominance over white petals. If two pink flowers are crossed, 50 percent of the flowers will be homozygous, and 25 percent of the flowers will be heterozygous.
Worms don't have lungs. They breathe through their skin.
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oak tree DNA is much longer than that in human and the number of chromosomes also differ
Avoid carcinogens (like smoking residues..etc), eat healthy and sleep well in order to maintain a strong immune system