Practice Questions

TLS Online TPP Program

#Question id: 5227

One of the characteristics of retrotransposons is that

#Unit 11. Evolution and Behavior

they code for an enzyme that synthesizes DNA using an RNA template.
they are found only in animal cells.
they generally move by a cut-and-paste mechanism.
they contribute a significant portion of the genetic variability seen within a population of gametes.

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TLS Online TPP Program

#Question id: 28433

#Unit 5. Developmental Biology

Which of the following activity is first morphological sign of gastrulation in amniotes?

TLS Online TPP Program

#Question id: 28434

#Unit 5. Developmental Biology

Primitive Streak is homologous to_____

TLS Online TPP Program

#Question id: 28435

#Unit 5. Developmental Biology

Primitive Streak is first arises from which area or cells?

TLS Online TPP Program

#Question id: 28436

#Unit 5. Developmental Biology

Primitive Groove is____

TLS Online TPP Program

#Question id: 28437

#Unit 5. Developmental Biology

Primitive groove is homologous to_____

TLS Online TPP Program

#Question id: 28438

#Unit 5. Developmental Biology

A regional thickening of cells at the anterior end of the primitive streak is termed____

a) Hensen’s node

b) Primitive Knot

c) Primitive Groove

d) Primitive pit