Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 9522
TLS Online TPP Program

#Question id: 12740

Choose the incorrect statement for Agglutination.

#Unit 13. Methods in Biology
  1. It is characterized by centrifugation in a liquid phase.
  2. It occurs when the right amount of antibody and antigen are present.
  3. It relies on the fact that the two binding sites of an antibody can bind to different antigen particles,thereby forming a bridge between two antigen molecules.
  4. It forms a stable structure where antigen and antibody particles are suspended in a solution by their attachments to each other. 
More Questions
TLS Online TPP Program

#Question id: 12486

#Unit 2. Cellular Organization

Which of the following process occur in prometaphase?
TLS Online TPP Program

#Question id: 12487

#Unit 8. Inheritance Biology

Neurofibromatosis type 1 is one of the most common autosomal dominant disorders. A woman with neurofibromatosis type 1 has an unaffected partner. Which of the following is correct regarding their children?
TLS Online TPP Program

#Question id: 12488

#Unit 8. Inheritance Biology

Retinoblastoma usually occurs as a sporadic event but in around 10% of cases there is a positive family history due to autosomal dominant inheritance. In these families the penetrance is approximately 80% (= 0.8). A woman with retinoblastoma, whose father and grandfather were also affected, has an unaffected partner with no relevant family history. Which of the following is correct regarding their children?
TLS Online TPP Program

#Question id: 12489

#Unit 8. Inheritance Biology

Achondroplasia shows autosomal dominant inheritance with complete penetrance. A man with achondroplasia has an unaffected partner of normal height. Their first two children are not affected. Which of the following is correct?
TLS Online TPP Program

#Question id: 12490

#Unit 8. Inheritance Biology

Tay-Sachs disease shows autosomal recessive inheritance. Parents of a newly diagnosed affected child are referred for genetic counselling. It would be correct to tell them that:
TLS Online TPP Program

#Question id: 12491

#Unit 8. Inheritance Biology

Phenylketonuria shows autosomal recessive inheritance with an incidence of 1 in 10000. Assume that the population is in Hardy-Weinberg equilibrium. Which of the following is correct?