Vidyalelo
Biology GK · all questions

Gentics and Evoloution
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

517

Questions

12/26

Page

Pick an option on a question to see the right answer and solution.

Cancer causing gene is

Select an option to see the answer and solution.

Organs having different structure and components but perform similar functions are called . . . . . . . .

Select an option to see the answer and solution.

Choose the correct sequence during formation of chemicals on early Earth

Select an option to see the answer and solution.

The amino acids used in protein synthesis are activated by ATP in the presence of specific activating enzymes called

Select an option to see the answer and solution.

The phenomenon of inheritance of genes together and to retain their parental combination even in the offsprings is known as

Select an option to see the answer and solution.

In the context of genetic disorder, consider the following.
A women suffer from colour blindness, while her husband does not suffer from it. They have a son and a daughter. In this context, which one of the following statement is most probably correct?

Select an option to see the answer and solution.

Which of the following is a base analog?

Select an option to see the answer and solution.

The gene pool of a given population may be changed by

Select an option to see the answer and solution.

Aqueous suspensions of the kinds of polymers that might have been abiotically synthesised on primitive earth, when heated form spherical aggregates called coacervates. This was disccvered by

Select an option to see the answer and solution.

The first step in protein synthesis, in prokaryotes, is the formation of

Select an option to see the answer and solution.

Which of the following is an artificial inducer commonly used in experimental work?

Select an option to see the answer and solution.

Mammoth is the ancestor of

Select an option to see the answer and solution.

According to which of the following theories, "evolution is a result of mutation, with the recombination of genes through biparental reproduction under the influence of natural selection over long periods of time"?

Select an option to see the answer and solution.

Which one of the following is not a genetic disorder?

Select an option to see the answer and solution.

The theory that dinosaurs were driven to extinction by the aftermath of a large asteroid impact on Earth was given by . . . . . . . .

Select an option to see the answer and solution.

The capacity of mature cells, when freed from the plant body, to reorganize themselves into new individuals is known as

Select an option to see the answer and solution.

The process of transforming the discontinuous fragments (Okazaki fragments) into a continuous molecule is referred to as

Select an option to see the answer and solution.

The plants where intraseminal growth is absent and the seedlings are formed by the globose embryos, the embryonal pole distal to the micropyle is called the

Select an option to see the answer and solution.

Sexual reproduction causes genetic variation because of

Select an option to see the answer and solution.

The concept of catastrophism was replaced by the theory of uniformitarianism due to the landmark investigations of

Select an option to see the answer and solution.