Viagra causes dilation of blood vessels and increased blood flow to the penis, facilitating erection. Viagra acts by inhibiting which of the following events?

#Question id: 3555

#SCPH01 Biochemistry

In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. If an F1 plant is cross with the heterozygous for bitter and no spots, what phenotypes ratio are expected in the offspring?

#Question id: 12942

#SCPH06 I Botany

#Question id: 3668

#SCPH01 Biochemistry

In most plasmids, the genes for proteins required for replication are located very close to the ______________ at which their gene are transcribed.

#Question id: 3030

#SCPH28 | Zoology

Which of the following features of prokaryotic biology involves metabolic cooperation among cells?

#Question id: 10520

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

Which one of the following fungus causes infected rice shoots to grow much faster relative to uninfected plants and responsible for the “foolish seedling disease” of rice?