TLS Online TPP Program

#Question id: 4362


How are bacteria able to change their patterns of protein synthesis so quickly in response to environmental changes?

#Unit 3. Fundamental Processes
  1. mRNAs that are produced are short-lived and degraded within a few minutes of being synthesized.

  2. mRNA have long lifespans, allowing the bacteria to use them many times for translation.

  3. mRNA is stored for later use.

  4. Operons are activated in the presence of transcription factors.

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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: 5732

#Unit 8. Inheritance Biology

Consider a plant, such as maize, heterozygous for a paracentric inversion. The inversion is very small and a synapsed inversion loop does not occur in any of the cells. Which of the following statement is correct?

TLS Online TPP Program

#Question id: 5735

#Unit 8. Inheritance Biology

Aneuploids may arise through nondisjunction, the failure of homologous chromosomes or sister chromatids to separate in meiosis. Following some statement are correct.

A)  Meiosis I non-disjunction leads to produce all gamete become aneuploidy

B) Meiosis II non-disjunction leads to produce half of gametes n+1 other half normal haploid

C) Meiosis I non-disjunction leads to produce half of gametes n+1 other half n-1

D) Either meiosis I or meiosis II non-disjunction leads to produce all aneuploidy gamete

TLS Online TPP Program

#Question id: 5736

#Unit 8. Inheritance Biology

Two zygote in which one A is 44+XYY and another B is 44+XXX karyotype is best described by