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TLS Online TPP Program

#Question id: 10823

Which of the following statements about symbiotic relationships is true?
#Unit 10. Ecological Principles
  1. In a parasitic relationship, both organisms are harmed
  2. Symbiotic organisms have usually undergone little or no coevolution
  3. A relationship that appears to be commensalistic may in fact be mutualistic or parasitic
  4. The most efficient type of parasite is one that kills its host
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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?