Practice Questions

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#Question id: 12570

Extinction is a natural phenomenon. It is estimated that 99% of all species that ever lived are now extinct. Why then do we say that we are now in a biodiversity crisis?

#SCPH06 I Botany

Humans are ethically responsible for protecting endangered species.
Scientists have finally identified most of the species on earth and are thus able to Quantify the number of species becoming extinct.
The current rate of extinction is high and human activities threaten biodiversity at all levels.
Humans have greater medical needs than at any other time in history, and many potential medicinal compounds are being lost as plant species become extinct.

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TLS Online TPP Program

#Question id: 2106

#SCPH01 Biochemistry

When using immunofluorescence microscopy with labeled Annexin V antibodies you found that there is a change in the distribution of the fluorescence when the cells were treated with tumor necrosis factor, an apoptosis-inducing agent. Your data show that this increase in Annexin V fluorescence increases specifically in the:

TLS Online TPP Program

#Question id: 18705

#SCPH01 Biochemistry

What will weight in picogram in human genome

TLS Online TPP Program

#Question id: 7761

#SCPH28 | Zoology

Correct sets of genes are well known to be involved in aging and its prevention, and each set appears to be conserved between phyla and even kingdoms.

a. DNA repair enzymes

b. proteins of the insulin signaling pathway

c. proteins in the mTORC1 signaling pathway

d. chromatin remodeling enzymes