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#Question id: 5091


In all vertebrate animals, development requires ________.

#Unit 5. Developmental Biology
  1. a large supply of yolk

  2. an aqueous environment

  3. extraembryonic membranes

  4. a primitive streak


Answer:- Option(s): 2


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TLS Online TPP Program

#Question id: 5809

#Unit 8. Inheritance Biology

Based on the physiological adaptation theory, bacterial populations that had not been exposed to T1 infection:

TLS Online TPP Program

#Question id: 5810

#Unit 8. Inheritance Biology

The main difference between the directed mutation theory and the random mutation theory is:

TLS Online TPP Program

#Question id: 5811

#Unit 8. Inheritance Biology

In a haploid organism, lethal alleles would be expected to:

TLS Online TPP Program

#Question id: 5812

#Unit 8. Inheritance Biology

In which situation would you expect the mutation frequency to increase over time?

TLS Online TPP Program

#Question id: 5813

#Unit 8. Inheritance Biology

Examples of environmental mutagens include:

TLS Online TPP Program

#Question id: 5814

#Unit 8. Inheritance Biology

A bacterial cell experiences a mutation as a result of exposure to nitrogen mustard and then divides several times to produce a total of eight cells. How many of the resulting cells would you expect to contain the mutation?

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