In helical nature of DNA is its periodicity each base pair is displaced (twisted) from the previous one by

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#Question id: 8916

#Part-B Specialized Branches in Biotechnology

What do animals as diverse as corals and monkeys have in common?

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#Question id: 8917

#Part-A Aptitude & General Biotechnology

The Hox genes came to regulate each of the following in what sequence, from earliest to most recent?

1. identity and position of paired appendages in protostome embryos

2. formation of water channels in sponges

3. anterior-posterior orientation of segments in protostome embryos

4. positioning of tentacles in cnidarians

5. anterior-posterior orientation in vertebrate embryos

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#Question id: 8918

#Part-A Aptitude & General Biotechnology

In individual insects of some species, whole chromosomes that carry larval genes are eliminated from the genomes of somatic cells at the time of metamorphosis. A consequence of this occurrence is that

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#Question id: 8919

#Part-A Aptitude & General Biotechnology

The last common ancestor of all animals was probably a

TLS Online TPP Program

#Question id: 8919

#Part-B Specialized Branches in Biotechnology

The last common ancestor of all animals was probably a

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#Question id: 8920

#Part-A Aptitude & General Biotechnology

Almost all of the major animal body plans seen today appeared in the fossil record over 500 million years ago at the beginning of the