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TLS Online TPP Program

#Question id: 5334

The way sex determination in birds, Male birds have two Z chromosomes, and females have Z and W. which of the following is not possible during inheritance?

#Unit 8. Inheritance Biology

  1. Male offspring get a Z chromosome from each parent

  2. Z chromosomes pass from mother to daughter

  3. W chromosomes always pass from mother to daughter

  4. Females get a Z from their father and a W from their mother

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TLS Online TPP Program

#Question id: 7316

#Unit 5. Developmental Biology

Programmed cell death, or apoptosis, is an essential part of animal development. In the nematode, with its invariant cell lineage, particular cell lineages or particular cells within specific lineages are destined to end in programmed cell death, and it was this feature that allowed the identification of the process and the analysis of its genetic control.

Which of the following combination of genes are correct?
TLS Online TPP Program

#Question id: 6967

#Unit 5. Developmental Biology

Gastrulation in sea urchins, Drosophila, and Xenopus all begin with a change in cell shape, in which the apical surface of an epithelial sheet contracts. This process is called:
TLS Online TPP Program

#Question id: 15488

#Unit 12. Applied Biology

IMP biosynthetic genes constitute the pur operon and are involved in Purines synthesis. Bacterial strain used for this 
TLS Online TPP Program

#Question id: 1410

#Unit 4. Cell Communication and Cell Signaling

The number of alterations in DNA per cell per day is
TLS Online TPP Program

#Question id: 19704

#Unit 13. Methods in Biology

What is aVF in augmented unipolar limb lead?