TLS Online TPP Program

#Question id: 775


The formation of microRNA is to:

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. serve as part of the structure of ribosome;

  2. transfer amino acids from the cellular fluid to the ribosome for protein synthesis;

  3. transfer genetic code to the ribosome for protein synthesis;

  4. control genetic expression by turning some genes on and others off, thus controlling gene expression.

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TLS Online TPP Program

#Question id: 5705

#Unit 8. Inheritance Biology

The chromosome has been broken at two points, and the segment between them has been inverted. What will be affects of this inversion however, person is heterozygous this abnormality?

TLS Online TPP Program

#Question id: 5706

#Unit 8. Inheritance Biology

Species A has 2n = 16 chromosomes and species B has 2n = 14. How many chromosomes would be found in an allotriploid of these two species?

TLS Online TPP Program

#Question id: 5707

#Unit 8. Inheritance Biology

Which of the following statement is correct for human is heterozygous for inversion?

TLS Online TPP Program

#Question id: 5708

#Unit 8. Inheritance Biology

If non-disjunction occurs in meiosis I, which of the following scenario is most likely to occur?

TLS Online TPP Program

#Question id: 5709

#Unit 8. Inheritance Biology

What is probability of couple where male is karyotypically normal and the female in pericentric inversion in heterozygous condition produced child with disability if 50% chance of crossing over takes placed within pericentric inversion. (Note: Duplication and deletion in gamete will results  in disability)

TLS Online TPP Program

#Question id: 5723

#Unit 8. Inheritance Biology

An individual heterozygous for a reciprocal translocation possesses the following chromosomes

I-  nonviability                                  II – Viability        

III- only translocated chromosome     IV- only normal chromosome

V- one translocated another normal

Which of the following above chromosome constituent and feature in their gamete result from?

A- alternate       B- adjacent-1     C- adjacent-2