Practice Questions

TLS Online TPP Program

#Question id: 289

Which of the following statements describes a covalent bond between Carbon and Hydrogen:

#SCPH01 Biochemistry

The electrons are shared equally between the two atoms of the bond.
The electrons of the bond are pulled closer to the nucleus of Hydrogen, because its outer shell electron is closer to its nucleus than the outer shell electrons of Carbon are to its nucleus.
The electrons of the bond are pulled closer to the nucleus of Hydrogen, because its nucleus contains more protons than Carbon.
The electrons of the bond are pulled slightly closer to the nucleus of Carbon, because although its outer shell electrons are located farther away from the protons of its nucleus, it contains more protons than Hydrogen.

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TLS Online TPP Program

#Question id: 675

#SCPH01 Biochemistry

Which statement is not true about an α-helix?

TLS Online TPP Program

#Question id: 12738

#SCPH06 I Botany

Match the following:

1. Growth Factors i. GTPase

2. Protein kinases ii. PDGF

3. G- Proteins iii. DNA binding protein

4. Nucleus located transcription factors iv.Serine Kinases

TLS Online TPP Program

#Question id: 2632

#SCPH28 | Zoology

How would transcription of the E. coli trp operon be affected,

I. If Removing sequence 4;

II. Changing several nucleotides in sequence 3 so that it can base-pair with sequence 4 but not with sequence 2;

TLS Online TPP Program

#Question id: 744

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

In a DNA molecule, deoxyribonucleotides are joined into a polymer by the covalent linkage of a phosphate group. The covalent link termed as:

TLS Online TPP Program

#Question id: 15874

#SCPH05 I Biotechnology

Callus culture show numerical chromosomal changes such as;