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TLS Online TPP Program

#Question id: 7121

How do the endodermal cells of the sea urchin embryo carry out gut formation during gastrulation?

#Unit 5. Developmental Biology
  1. They move inside the blastocoel, and form the skeletal structures that will support the adult animal.
  2. They move into the blastocoel as mesenchyme and crawl ventrally, to mark the location of the future mouth.
  3. Changes in cell shape initiate the invagination; convergent extension extends the sheet of cells into the blastocoel, and finally, filopodia make contact with the future mouth region and pull the tip of the gut to that point.
  4. They enter the interior of the embryo through the dorsal lip of the blastopore and, through a combination of cell movements and convergent extension, form the gut.
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TLS Online TPP Program

#Question id: 10766

#Unit 8. Inheritance Biology

what is degree of freedom
1- Degrees of freedom represent the number of ways in which the observed outcome categories are free to vary.
2- Degree of freedom refers to the minimum number of logically independent values, which are values that have the freedom to vary in the data sample.
3.Degrees of freedom represent the number of ways in which the observed outcome categories are restrict to vary.
Which one are correct statement?
TLS Online TPP Program

#Question id: 11618

#Unit 8. Inheritance Biology

A monohybrid cross between two heterozygous  yellow mice forms the progeny in F1 generation  is  yellow and  non-yellow with the genotype YY(Lethal) and yy , so what will be the ratio of this cross?
TLS Online TPP Program

#Question id: 27587

#Unit 3. Fundamental Processes

Three major domains of DICER are
TLS Online TPP Program

#Question id: 5257

#Unit 8. Inheritance Biology

Which term is least closely associated with the others?
TLS Online TPP Program

#Question id: 10463

#Unit 6. System Physiology – Plant

LOV1 and LOV2, each binding a chromophore flavin mononucleotide (FMN), which one of the following statements shows incorrect prediction about LOV domains?