TLS Online TPP Program

#Question id: 5018


Which event is nearest in time to the end of the period known as snowball Earth?

#Unit 11. Evolution and Behavior
  1.  oxygenation of Earthʹs seas and atmosphere

  2.  evolution of mitochondria

  3. Cambrian explosion

  4. evolution of true multicellularity

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TLS Online TPP Program

#Question id: 5344

#Unit 8. Inheritance Biology

What is the most probable mode of inheritance depicted in the following pedigree?

TLS Online TPP Program

#Question id: 5345

#Unit 8. Inheritance Biology

Which of the following above is most probable mode of inheritance?

TLS Online TPP Program

#Question id: 5346

#Unit 8. Inheritance Biology

The following typical pedigree illustrates the key point that affected children are born to unaffected parents: Which of the following is correct statement?

TLS Online TPP Program

#Question id: 5347

#Unit 8. Inheritance Biology

The inheritance of a given disorder is recorded in small families shown below: Based on the above limited information, which one of the following inheritance pattern best explains the observations?

TLS Online TPP Program

#Question id: 5363

#Unit 8. Inheritance Biology

A Southern blot using a probe that binds to the region spanning the mutation causing albinism detects one DNA fragment in homozygous normal individuals (A/A) and two fragments in albino individuals (a/a). Following banding pattern of three offspring of parents? Which of the following correct regarding parents?

TLS Online TPP Program

#Question id: 5357

#Unit 8. Inheritance Biology

This pedigree shows the inheritance of a recessive trait in humans. Individuals that have the trait are homozygous for a recessive allele a. If H and I, who happen to be first cousins, marry and have a child, what is the chance that this child will have the recessive trait?