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词汇 blastodisk
释义

Definition of blastodisk in US English:

blastodisk

(also blastodisc)
nounˈblastəˌdiskˈblastəˌdisk
Embryology
  • A blastula having the form of a disk of cells on top of the yolk in the eggs of reptiles and birds.

    Example sentencesExamples
    • Yolk syncytial nuclei originated from the deepest, open cells beneath the blastodisk.
    • The blastodisks were located, removed aseptically, and stored in cryovials at - 80 C for DNA analysis.
    • Note the blastula in reptiles is called a blastoderm or blastodisk because the divisions have been concentrated into a thin disk of cells at the animal pole.
    • At 38 minutes after insemination, the first cleavage was observed and the first cleavage furrow of the blastodisk appeared at 53 minutes.
    • In amniotes, the embryo develops in a blastodisk atop a large yolk mass.

Definition of blastodisk in US English:

blastodisk

(also blastodisc)
nounˈblastəˌdisk
Embryology
  • A blastula having the form of a disk of cells on top of the yolk in the eggs of reptiles and birds.

    Example sentencesExamples
    • The blastodisks were located, removed aseptically, and stored in cryovials at - 80 C for DNA analysis.
    • Yolk syncytial nuclei originated from the deepest, open cells beneath the blastodisk.
    • Note the blastula in reptiles is called a blastoderm or blastodisk because the divisions have been concentrated into a thin disk of cells at the animal pole.
    • In amniotes, the embryo develops in a blastodisk atop a large yolk mass.
    • At 38 minutes after insemination, the first cleavage was observed and the first cleavage furrow of the blastodisk appeared at 53 minutes.
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