floral organ development is controlled by overlapping expressions of A class , B class and C class genes in different whorls. In an Arabidopsis mutant, the floral whorls had following pattern:

Sepal àSepal àcarpel àcarpel 

Mutation in which one of the following class of gene causes above pattern.  

#Question id: 11403

#SCPH06 I Botany

Several categories of risk of species extinction have been defined. A species can be determined as critical endangered if there is considered to be

#Question id: 11404

#SCPH06 I Botany

You were discovered 4 species in forest, their characteristic as following,

A specie eat only bamboo;

B species eat fruits of many tree species;

C species Short life span;

D species low population variability .

Which of the following species characteristics have been proposed as more prone to extinct?

#Question id: 11405

#SCPH06 I Botany

Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

A. Endemism species are more prone to extinction than fragmented

B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

C. Population variability species are less prone to extinct

D. Species with naturally long life spans may be more likely to become extinct

#Question id: 11406

#SCPH06 I Botany

Which of the following is true for a critically endangered species?

#Question id: 11407

#SCPH06 I Botany

Which of the following is incorrect statement?

#Question id: 11408

#SCPH06 I Botany

According to IUCN red list criteria , a species would be classified on the basis of following criteria are a- >50 decline in population during last 10 year b-occur in area less than 20,000 sq km c- total adult population less than 2500 Above observation which of the following class of IUCN