Most dinosaurs and pterosaurs become extinct at the close of the __________ era.

#Question id: 5043

#I Life Science/ Life Sciences Group – I-V

 The ability of a single cell to divide and produce all of the differentiated cells in an organism:

#Question id: 6948

#SCPH01 Biochemistry

Which of the following genes is expressed at the posterior margin of each parasegment

#Question id: 11547

#SCPH28 | Zoology

A cluster of tumor cells that produces and secretes growth factors to induce surrounding cells to grow and divide is showing which type of cell-to-cell signaling?

#Question id: 7766

#SCPH28 | Zoology

The relationship between shortened telomeres and stem cell depletion has been seen in degenerative diseases such as mouse muscular dystrophy,

I) When____ is activated by damaged telomeres, DNA replication halts, and if the repair doesn’t work, apoptosis is initiated. If the cell is a stem cell or some other rapidly replicating cell, this will reduce the numbers of cells produced, and the lack of stem cells will produce an “aged” phenotype.

 II) When ____ is activated by damaged telomeres, DNA replication halts, repair do its work, apoptosis is inhibited. If the cell is a stem cell or some other rapidly replicating cell, this will increase the numbers of cells produced, and then these cells will produce an “aged” phenotype.

 Choose correct gene name with right statement

#Question id: 4817

#SCPH28 | Zoology

How many different gametes can be formed by an organism with genotype AaBbCCddEe, If a, b and c gene are completely link?