Inbreeding

Preferential mating between related individuals. Inbreeding is more likely to take place in nature when population size becomes very small, and the number of mates is limited.

TLS Online TPP Program

#Id: 4757

#Unit 5. Developmental Biology

Embryos from homozygous skn-1-deficient mothers lack both pharyngeal mesoderm & endoderm derivatives of EMS.

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#Id: 4758

#Unit 5. Developmental Biology

skn-1-deficient embryos make extra hypodermal (skin) & body wall tissue.

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#Id: 4759

#Unit 5. Developmental Biology

PAL-1 activity is needed for the normal development of the somatic (but not the germline) descendants of the P2 blastomere, specifies muscle production.

TLS Online TPP Program

#Id: 4760

#Unit 5. Developmental Biology

Embryos lacking PAL-1 have no somatic cell types derived from the C and D stem cells.

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#Id: 4761

#Unit 5. Developmental Biology

PAL-1 is regulated by the MEX-3 protein, an RNA binding protein that inhibit the translation of pal-1 mRNA.

TLS Online TPP Program

#Id: 4762

#Unit 5. Developmental Biology

In mex-3-deficient mutants, PAL-1 is seen in every blastomere.