In a wild life reserve, we have two species of mammal. Species A reproduce thrice a year and produced 6-10 offspring per litter. Species B reproduce once in 2-3 year and produced 1-2 offspring during each cycle of reproduction. Which of the following statement is true?

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#Question id: 634

#SCPH05 I Biotechnology

An enzyme has a Vmax of 50 micromol product formed (minute x mg protein)-1 and a Km of 10 microM for the substrate. When a reaction mixture contains the enzyme and 5 microM substrate, which of the following percentages of the maximum velocity will be closest to the initial reaction rate?

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#Question id: 16492

#SCPH01 Biochemistry

Upstream elements on the other hand regulates the activity of gene action are

A. Enhancer sequences

B. Silencer sequences

C. Termination sequences

D. Signal sequences

Mark the option with correct combination

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#Question id: 12947

#SCPH01 Biochemistry

Match the following-

A. G- proteins.                    1.src

B. Growth factors.            2.erbB

C. Protein kinases.           3. N-ras

D. Growth factor receptor.   4.hst

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#Question id: 1120

#SCPH01 Biochemistry

A mutation that knocks out the GTPase activity of a G protein would have what effect on a cell?

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#Question id: 2981

#SCPH06 I Botany

For the nuclear envelope to be broken down as cells go from prophase to prometaphase during mitosis, the nuclear lamina has to be disassembled. Which of the following statement is incorrect?