Gentics And Evoloution - Study Mode
[#281] Among living organisms, which one of the following is the most responsible factor for bringing about the origin of a new species?
Correct Answer
(B) Mutation
[#282] Consider the following statements regarding the embryological evidences for evolution and choose the correct answer: 1. Algae are much advanced than mosses and ferns 2. Protonema of mosses resemble certain green algae 3. Both bryophytes and pteridophytes have ciliated sperms and require water for fertilization 4. Gymnosperms do not need water for fertilization 5. Cycads and Gingko, the primitive gymnosperms, have ciliated sperms like the pteridophytes
Correct Answer
(D) Only 2, 3, 4 and 5 are true
[#283] Which of the following together form a nucleotide?
Correct Answer
(C) Nitrogenous base, phosphate and deoxyribose
[#284] Darwin believed that the certain parts of the body get larger through the generation. They
Correct Answer
(B) contribute to greater reproductive success
[#285] Haemophilia is mostly associated with
Correct Answer
(B) royal families