Practice Questions

TLS Online TPP Program

#Question id: 9261

Which of the following statements about horizontal gene transfer is accurate?

#XL - R Botany

Horizontal gene transfer was quite common in the early stages of evolution of life on Earth.
Horizontal gene transfer among organisms does not occur today.
Horizontal gene transfer moves only genes that play a role in metabolism.
Horizontal gene transfer occurs only among closely related organisms.

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TLS Online TPP Program

#Question id: 19944

#XL - P Chemistry

Which of the following statements about quantum numbers is wrong?

TLS Online TPP Program

#Question id: 19945

#XL - P Chemistry

The two electrons have the following sets of quantum numbers . X: 3, 2, -2, + ½ Y : 3, 0, 0, + ½. What is true of the following?

TLS Online TPP Program

#Question id: 19946

#XL - P Chemistry

If the value of azimuthal quantum number of an electron is 2, then which of the following values of magnetic quantum numbers is not permissible,

TLS Online TPP Program

#Question id: 19947

#XL - P Chemistry

An isotone of ₃₂Ge⁷⁶is (i) ₃₂Ge⁷⁷(ii)₃₃As⁷⁷ (iii) ₃₄Se⁷⁷ (iv) ₃₄Se⁷⁸.

TLS Online TPP Program

#Question id: 19948

#XL - P Chemistry

The fundamental particles which arc responsible for keeping nucleons together is

TLS Online TPP Program

#Question id: 19949

#XL - P Chemistry

The positron is as heavy as