In evolutionary history which of the following rose 1st?

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#Question id: 4137

#XL - T Zoology

Formation of the ribosomal initiation complex for bacterial protein synthesis does not require:

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#Question id: 8925

#XL - P Chemistry

What is the probable sequence in which the following clades of animals originated, from earliest to most recent?

1. tetrapods

2. vertebrates

3. deuterostomes

4. amniotes

5. bilaterians

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#Question id: 8938

#XL - R Botany

Cephalization is primarily associated with

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#Question id: 20227

#XL - P Chemistry

CO₂ is isostructural with

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#Question id: 12938

#XL - S Microbiology

What is the main advantage of using Yeast Artificial Chromosome based vector over other vectors?

1. It has ability to clone very large fragments of DNA.

2. YAC vectors do not contain origin of replication sites 

3. It has insert  range up to 2000 kb.

4. It help in genome mapping and sequencing projects.