Which ion play an essential role in pollen tube growth?

TLS Online TPP Program

#Question id: 5696

#SCPH06 I Botany

Abnormality during egg formation as a nondisjuction in anaphase I of single set of chromosome, but spermatogenesis is normal will produced resulting progeny would be

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#Question id: 10685

#SCPH06 I Botany

figure show population growth in two species A ana B . Interaction between

 

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#Question id: 6967

#SCPH06 I Botany

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:

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#Question id: 12100

#SCPH06 I Botany

Prairie dogs once covered the expanses of the Great Plains. Their grazing made the grass more nutritious for the huge herds of bison, and a variety of snakes, raptors, and mammals   preyed on the rodents. In fact, the black- footed ferret (now endangered) specialized in prairie dog predation. Today, growing housing and agricultural developments have covered many prairie dog towns. Which of the following statements about prairie dogs is true?

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#Question id: 12943

#SCPH01 Biochemistry

Choose the correct order for the steps involve in Insitu hybridization.

1. Cell permeaabilisation

2. Detection of hybridised probe radioactive.

3. Wash excess probe from section

4. Cell fixation