Synapomorphy
...hile circinate vernation, or the unrolling of new
frond s, ... Full article >>>...
Spore
...t near Grand Portage, Minn. that had one fertile
frond (Butters and Tryon 1948). Full article >>> Subjection to the temperature of boiling water for, say, half an hour seemed an efficient mode of sterilization, until it was discovered that the spore s of bacteria are so involved in hea...
Rhizome
...derground and are perennial. Their leaves, called
frond s, grow up from the rhizome each spring [View]. Full article >>>...
Gametes
...organ ism living on a surface (e.g., on a seaweed
frond ) ... Full article >>> : Fusion of female and male haploid gametes to form a diploid zygote from which a new individual develops. Fingerprinting : The use of RFLP s or repeat sequence DNA to establish a unique individual-...
Gamete
...organ ism living on a surface (e.g., on a seaweed
frond ) ... Full article >>> The second gene copy is silenced during gamete formation in the egg (when maternal gene copies are silenced) or the sperm (when paternal gene copies are silenced). This is known as genetic imprinting...
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