In E. coli, to repair a thymine dimer by nucleotide excision repair, in which order do the necessary enzymes act?

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#Question id: 22955

#Unit 5. Developmental Biology

Based On ABC model during flower development, loss of class A activity results the formation of only stamen and carpel. Which of the flowering floral organs identity genes controls the class  A activity ?

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#Question id: 22956

#Unit 5. Developmental Biology

Individual and overlapping expression of homeotic genes in adjacent whorl of a flower determine the pattern of floral organ development. In an Arabidopsis mutant, floral organs are distributed as follows

WHORL 1 Sepal

WHORL 2 Petal

WHORL 3 Petal

WHORL 4 Sepal

Loss of function mutation in which one of the following genes would have caused the above pattern of floral organs development 

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#Question id: 22957

#Unit 5. Developmental Biology

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.  

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#Question id: 22958

#Unit 5. Developmental Biology

Which of the following statement is correct regarding to the flower development in Arabidopsis?

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#Question id: 28521

#Unit 5. Developmental Biology

 Which of the following stage of the diploid life cycle commences with the fusion of the haploid egg and sperm to form the single-celled ?

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#Question id: 28522

#Unit 5. Developmental Biology

The apical cell undergoes a series of divisions to generate a spherical, eight-cell (octant) globular embryo exhibiting radial symmetry, is called as____