Which of the following statements about craniates is (are) correct?

1. Craniates are more highly cephalized than are non-craniates.

2. Craniatesʹ genomic evolution includes duplication of clusters of genes that code for transcription factors.

3. The craniate clade is synonymous with the vertebrate clade.

4. Pharyngeal slits that can assist in gas exchange originated in craniates,

5. The two-chambered heart originated with the early craniates.

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#Question id: 23969

#Unit 8. Inheritance Biology

Deletion of a number of pairs that is not evenly divisible that will lead to

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#Question id: 9585

#Unit 6. System Physiology – Plant

In light reaction the reaction centre of PSII  receives electron from water molecules by splitting into oxygen, If 5 oxygen molecules evolved per 50 quanta was

absorbed then what is the quantum yield?

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#Question id: 4018

#Unit 3. Fundamental Processes

How does binding of the lac repressor to the lac operator block transcription initiation?

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#Question id: 15763

#Unit 5. Developmental Biology

The strategy, in which a stem cell and a developmentally committed cell are produced at each division, termed as

A. Asymmetric stem cell division.

B. Symmetric stem cell division

C. Single stem cell asymmetry .

D. Population asymmetry

TLS Online TPP Program

#Question id: 1325

#Unit 4. Cell Communication and Cell Signaling

What is the main purpose of gap junctions?