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TLS Online TPP Program

#Question id: 4319

Why are BRCA1 and BRCA2 considered to be tumor-suppressor genes?

#SCPH01 Biochemistry

  1. Their normal products participate in repair of DNA damage.

  2. The mutant forms of either one of these prevent breast cancer.

  3. The normal genes make estrogen receptors.

  4. They block penetration of breast cells by chemical carcinogens.

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TLS Online TPP Program

#Question id: 4337

#SCPH28 | Zoology

Which of the following conditions is most likely to cause the lactose operon to be transcribed?
TLS Online TPP Program

#Question id: 14929

#SCPH05 I Biotechnology

Escherichia coli grows with a doubling time of 0.5 h in the exponential growth phase. How much time would be required to grow the cell culture from 0.1 to 10 kgdry cell m-3 
TLS Online TPP Program

#Question id: 11541

#I Life Science/ Life Sciences Group – I-V

The steroid hormone aldosterone affects only a small number of cells in the body because ________.
TLS Online TPP Program

#Question id: 5430

#SCPH28 | Zoology

A plant height in Maize is control by 3 pair of polygene .Two varieties of maize averaging 120 and 60 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 40 inches in height. What is proportional of F2 progeny that is display phenotype either 120 cm or 60 cm height?
TLS Online TPP Program

#Question id: 23245

#SCPH01 Biochemistry

In Sanger chain termination method for sequencing requires?
1) A. Single stranded DNA template
2) Primer complementary to template strand
3) DNA Polymerase
4) dNTPs and ddNTPs
Which of the following option has correct combination?