A new species of aquatic chordate is discovered that closely resembles an ancient form. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. In addition to these, it will probably have which of the following characteristics?

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#Question id: 3577

#Unit 8. Inheritance Biology

Which is the most correct description of a dominant trait?

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#Question id: 14708

#Unit 5. Developmental Biology

Difference between gastrulation in Xenopus and sea urchin;

I. In Xenopus, formation of blastopore: mesoderm and endoderm move inside by involution over blastopore lip.

II. In sea urchin, formation of blastopore: mesodermal cells migrate into the interior; endoderm moves inside by invagination of the epithelial sheet.

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#Question id: 7249

#Unit 5. Developmental Biology

Match the following proteins (column I) in nematodes with their functions (column II).

Column I	Column II
A. SKN-1	i. specify the Anterior-Posterior axis
B. TBX-35	ii. specify MS fates
C. MOM-2 and MOM-5	iii. controls the fate of the EMS blastomere
D. PHA-4	iv. activates mesodermal genes in the MS cell

Which of the following is correct?

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#Question id: 691

#Unit 1. Molecules and their Interaction Relevant to Biology

Roughly how many amino acids are there in one turn of an alpha helix?

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#Question id: 11900

#General Aptitude

The number of pair of positiveintegers whose sum is 99 and HCF is 9 is