Which one of the following will be observed when auxin to cytokinin ratio is increased in the culture medium during organogenesis from tobacco pith callus?

#Question id: 5048

#SCPH06 I Botany

when a cell or tissue is capable of differentiating autonomously even when placed into another region of the embryo or a cluster of differently specified cells in a petri dish. This cell or tissue said to be-

#Question id: 8852

#SCPH06 I Botany

The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have very different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common ancestor at about the same time. Which of the following is the most likely explanation for these data?

#Question id: 8703

#SCPH05 I Biotechnology

In a comparison of birds and mammals, having four limbs is ________.

#Question id: 5609

#SCPH01 Biochemistry

Just before sperm addition, sea urchin eggs are microinjected with a calcium chelator. What event will most likely not takes place after fertilization?

#Question id: 10757

#SCPH06 I Botany

A Negative Hydrostatic Pressure in Soil Water,