Gentics And Evoloution - Study Mode

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[#271] Consider the following statements regarding the conclusions drawn from fossil records and choose the correct answer: 1. There existed a multitude of diversified animal groups, similar to the animal groups that exist today 2. The most primitive forms of life are found in the oldest rocks 3. None of the past forms of life are exactly like any of those now living 4. All fossils did not appear at a time, but appeared during different great spans of times

(A) Only 1, 2 and 3 are true

(B) Only 2, 3 and 4 are true

(C) Only 1, 3 and 4 are true

(D) 1, 2, 3 and 4 are true

Correct Answer

(D) 1, 2, 3 and 4 are true

[#272] Consider the following statements regarding the origin of protobionts (protocells) and choose the correct answer: 1. The self-assembly process is internally controlled by selective intermolecular forces 2. The protocells possessed lipids, nucleic acids and had a definite molecular configuration 3. The protocells were heterotrophic 4. The instructions for the behaviour in the protocellular life-cycle were in the protenoids

(A) Only 1, 2 and 3 are true

(B) Only 2 and 3 are true

(C) Only 1 and 4 are true

(D) Only 1, 3 and 4 are true

Correct Answer

(D) Only 1, 3 and 4 are true

[#273] The unit of DNA responsible for the appearance and inheritance of a character is known as a

(A) Nucleotide

(B) Nucleoside

(C) Gene

(D) Peptide

Correct Answer

(C) Gene

[#274] Who among the following is called the "Father of genetics"?

(A) Eric Von Tschermak

(B) Gregor Johann Mendel

(C) Huge deVries

(D) Karl Correns

Correct Answer

(B) Gregor Johann Mendel

[#275] Match the following lists: List-I (Discoverer) List-II (Discovery) a. Jenner 1. Blood grouping b. Watson 2. Penicillin c. Landsteiner 3. Vaccination d. Fleming 4. Double helix

(A) a-3, b-1, c-2, d-4

(B) a-3, b-4, c-2, d-1

(C) a-3, b-4, c-1, d-2

(D) a-3, b-2, c-4, d-1

Correct Answer

(C) a-3, b-4, c-1, d-2