Splice sites are directional in nature. 5’ splice site -the left, or donor, site and the 3’ splice site - right, or acceptor, site. So, in below table the complex and their events are given match them correctly .

Column 1	Column 2
1. E complex	a. Joining of U4/6 and U5 tri-snRNPs
2. A complex	b. U2 addition to base pair with the branch site in the presence of ATP
3. B1 complex	c. Formation of commitment complex in which U1 is base paired with the 5' splice site

#Question id: 7262

#Unit 5. Developmental Biology

Match the following Gene (column I) with their function (column II).

Which of the following is correct?

#Question id: 7260

#Unit 5. Developmental Biology

There are maternally-determined variations along the animal-vegetal axis that are necessary for normal development in sea urchin. Which of the following statements about regulation in sea urchin embryos is consistent with that fact?

#Question id: 7259

#Unit 5. Developmental Biology

The mechanism that triggered to initiate limb bud formation involes:

A. making mesoderm instructive for limb formation

B. inducing epithelial-to-mesenchymal transitions

C. making mesoderm permissive for limb formation

D. inducing mesenchymal-to-epithelial transitions

E. specifying forelimb and hindlimb

Which of the following combinations are incorrect?

#Question id: 5522

#Unit 5. Developmental Biology

In reptiles, birds, and mammals, mesoderm is made by invagination and involution into the

#Question id: 5523

#Unit 5. Developmental Biology

Ectodermal cells condense into placodes that change into

#Question id: 5524

#Unit 5. Developmental Biology

Interaction of the optic stalk with ectoderm makes the development of the