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DB Chapter 10: Early development in Caenorhabditis elegans
How long is the period of embryogenesis in c. elegans?
Very rapid, about 16 h.
DB Chapter 10: Early development in Caenorhabditis elegans
C. elegans has _____ different cell types.
lots of
DB Chapter 10: Early development in Caenorhabditis elegans
Adult c. elegans are hermaphroditic.
Right.
DB Chapter 10: Early development in Caenorhabditis elegans
How many somatic cells does c. elegans have?
959
DB Chapter 10: Early development in Caenorhabditis elegans
C. elegans can reproduce by self fertilisation.
Right.
DB Chapter 10: Early development in Caenorhabditis elegans
What is the cleavage type of c. elegans?
Rotational holoblastic.
DB Chapter 10: Early development in Caenorhabditis elegans
Explain the first two cleavages of c. elegans!
1. Cleavage: An anterior founder cell and a posterior stem cell is produced
2. Cleavage: the founder cell divides equatorial while the stem cells divides meridionally to produce another founder cell and a posterior stem cell
DB Chapter 10: Early development in Caenorhabditis elegans
The orientation of the axis is determined by the form of the ___?
Egg.
DB Chapter 10: Early development in Caenorhabditis elegans
How is determined which pole is posterior?
By the place of sperm entry.
DB Chapter 10: Early development in Caenorhabditis elegans
P1 lineage is
Autonomous specificated.
DB Chapter 10: Early development in Caenorhabditis elegans
AB lineage is
conditional specificated.
DB Chapter 10: Early development in Caenorhabditis elegans
Which kind of granules does the zygote contain?
P-granules.
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