Gentics And Evoloution - Study Mode

Show All Answers

[#276] Match List-I with List-II and select the correct answer: List-I List-II a. Oenothera lamarckiana 1. Autoallohexaploid b. North American cotton plant 2. Autotetraploid c. Triticum vulgare 3. Allohexapioid d. Solanum nigrum 4. Allotetraploid

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

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

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

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

Correct Answer

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

[#277] Match List-I (Mutants described by de Vries) with List-II (Characters) and select the correct answer: List-I List-II a. Progressive species 1. Plants which did not breed true but produced mutants like the parent b. Regressive species 2. Species with weak structures which will become extinct ultimately c. Degressive species 3. Species with loss of some characters d. Inconstant species 4. Species with additional characters

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

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

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

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

Correct Answer

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

[#278] Study the following statements. 1. Evolutionary development of a species can be best studied by studying fossils of these species. 2. Human evolution originated in Africa. 3. Wings of pigeon, bat and mosquito exhibit the phenomenon called Convergent Evolution. Which of the statements given above is/are correct?

(A) 1 and 2

(B) 2 and 3

(C) 1, 2 and 3

(D) None of the above

Correct Answer

(C) 1, 2 and 3

[#279] Consider the following statements. 1. Allosomes, i.e. chromosomes which are responsible for determination of sex e.g. X and Y chromosomes. 2. Autosomes, i.e. chromosomes, which determine the somatic characters. Which of the statement(s) given above is/are true?

(A) Only 1

(B) Only 2

(C) 1 and 2

(D) None of these

Correct Answer

(C) 1 and 2

[#280] Coacervates belongs to the category of

(A) cyanobacteria

(B) protozoans

(C) molecular aggregates with lipid bilayer

(D) molecular aggregate lack definite lipid membrane

Correct Answer

(D) molecular aggregate lack definite lipid membrane