Gentics and Evoloution MCQ question and answer with solution | Biology Gk MCQs

Consider the following statements regarding evidences of evolution and choose the correct answer:
1. Serodiagnostic tests of the members of the families of angiosperms help greatly in tracing out the phylogeny among themselves
2. The barriers like lofty mountains, deserts and sea are responsible for the origin of endemic species of a particular area
3. Endemic species are often found to originate with some closely allied species
4. Domestication of plants means the culture or cultivation of plants

The sequential steps of the mechanism of translation during protein synthesis are

Consider the following statements regarding the evidences against and for the spore theory of life and choose the correct answer:
1. The theory explains well how life originated and where from the spores came to earth
2. Evidence for the existence of life on other planets came from the discovery of fossils of microorganisms
3. Space research has shown that the bacteria can survive the rigors of space travel and the airless, waterless environment of the moon

The diamond code and triangle code for amino acids were proposed by

The theory of natural selection is based on which of the following factors?

In genetic dictionary, there are 64 codons as

According to the ratio theory of sex-determination, which of the following is the determining factor of sex?

The book 'The Origin of Species' was written by

Which of the following enzymes facilitates the entry of lactose into the cell?

The pyrimidines are single ring compounds with nitrogen in which positions of a 6-membered benzene ring?