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TLS Online TPP Program

#Question id: 3748

How are the BRCA proteins and their genes implicated in breast cancer?

#Section 3: Genetics, Cellular and Molecular Biology

  1. The BRCA proteins damage DNA by generating double-stranded breaks which can lead to cancer.

  2. Cells become more susceptible to damage if the genes for these proteins are damaged.

  3. BRCA proteins inhibit excision repair mechanisms.

  4. BRCA proteins initiate recombination between non-homologous DNA sequences.

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TLS Online TPP Program

#Question id: 27338

#Section 3: Genetics, Cellular and Molecular Biology

In every cell, the number of tRNA molecules is at least_______?
TLS Online TPP Program

#Question id: 27339

#Section 3: Genetics, Cellular and Molecular Biology

The number of base pair in a single turn of B-form DNA about the axis of the molecule is_____?
TLS Online TPP Program

#Question id: 27340

#Section 3: Genetics, Cellular and Molecular Biology

The distance spanned by one turn of B form DNA is____?
TLS Online TPP Program

#Question id: 27341

#Section 5: Bioprocess Engineering and Process Biotechnology

In a chemostat, under steady state condition, if the feed media is sterile and endogenous metabolism is negligible compared to growth rate, then the specific growth rate (μ) will be
TLS Online TPP Program

#Question id: 27342

#Section 5: Bioprocess Engineering and Process Biotechnology

A culture of Rhizobium sp. is grown in a chemostat (200 m³ bioreactor). The feed contains 12 g/L sucrose, Ks for the organism is 0.2 g/L and Hmax = 0.3 h¹. The flow rate required to obtain steady state concentration of sucrose as 2 g/L in the bioreactor
TLS Online TPP Program

#Question id: 27343

#Section 5: Bioprocess Engineering and Process Biotechnology

Cell wash out condition in the bioreactor occurs when