Miniature wings (Xm) in Drosophila result from an X-linked allele that is recessive to the allele for long wings (XL). Following different cross with resulting progeny were possible

Male parent	Female parent Heterozygous	Male offspring	Female offspring
Long wings XLY	Long wing XL Xm	A	B
Miniature wings XmY	Long wing XL Xm	C	D

Which of the following above offspring is not possible to carry miniature wings?

#Question id: 7007

#Unit 5. Developmental Biology

The change in the state of specification of imaginal disc of Drosophila to that of a different disc type is known as:

#Question id: 7008

#Unit 5. Developmental Biology

The group of cells of amphibian blastula capable of inducing the organizer is called as:

#Question id: 7009

#Unit 5. Developmental Biology

The vegetal pole of a frog zygote differs from the animal pole in that:

#Question id: 7010

#Unit 5. Developmental Biology

After anchor cell formation, When LIN-12 is used again during vulva formation, it is activated by the primary vulval lineage to

#Question id: 7011

#Unit 5. Developmental Biology

The vertebrate brain and spinal cord start their development as a flat plate of neuroepithelial cells that folds up along most of its length to form a tube. The process of forming this neural tube is called neurulation. Which of the following signals play important role in both neurulation and cell fate patterning of neural tube?

#Question id: 7012

#Unit 5. Developmental Biology

The differentiated cells divide but maintain their differentiated functions. The new cells do not come from stem cells, nor do they come from the dedifferentiation of the adult cells. Each cell produces cells similar to itself; no mass of undifferentiated tissue forms. This type of regeneration is: