An obsolete taxon, the ʺRadiata,ʺ included all phyla whose adults had true radial symmetry. Today, the ʺRadiataʺ is more correctly considered to be

1. a clade.

2. a grade.

3. monophyletic.

4. paraphyletic.

5. polyphyletic.

#Question id: 4757

#SCPH12 I Genetics

The newborn baby of a mother having blood group O, Rh+ and father having blood group AB, Rh-, got mixed with other babies in the hospital. The baby with which of the following blood groups is not confirmable to be of the said couple?

(i) AB, Rh+                                                    (ii) O, Rh+

(iii) A, Rh+                                         (iv)  B, Rh+

#Question id: 6943

#SCPH28 | Zoology

The portion of the blastoderm-stage embryo which will give rise to most ectodermal, mesodermal, and endodermal tissues is called the:

#Question id: 798

#SCPH05 I Biotechnology

Match the structural properties of DNA with the respective types of DNA in which they are found.

               COLUMN – I                                             COLUMN – II

A.        Pitch per turn of helix                                     1. 45.6 angstrom                   

                                                                                      2. 24.6 angstrom                               

 3. 33.2 angstrom

B.        Helix packing diameter                                 1. 23.7 angstrom            

                                                                                     2. 18.4 angstrom            

3. 25.5 angstrom

C.        Major-groove proportions                            1. Flattened out on helix surface

                                                                                      2. Extremely narrow but very deep

 3. Wide and of intermediate depth

D.        Minor-groove proportions                            1. Very broad but shallow

                                                                                     2. Extremely narrow but very deep

                                                                                    3. Narrow and of intermediate depth

#Question id: 10393

#I Life Science/ Life Sciences Group – I-V

#Question id: 19214

#SCPH28 | Zoology