Gentics And Evoloution - Study Mode
[#236] By which combination of chromosome, a child will be male?
Correct Answer
(C) Y from male and X from female
[#237] Ponnamperurna (1965) demonstrated the production of adenosine by heating dilute aqueous solutions of
Correct Answer
(B) Adenine, ribose and phosphoric acid
[#238] Consider the following statements regarding evolution and choose the correct answer: 1. Basically, evolution is the result of the differential survival in each generation of the progeny of the individuals with certain special characteristics 2. The organization of genes in chromosomes and the behaviour of these during cell division do not affect the mechanisms of evolution 3. Due to sexual reproduction there is a tremendous increase in variability 4. Differential survival is always partly due to capacity to adopt to the physical environment
Correct Answer
(C) Only 1, 3 and 4 are true
[#239] Consider the following statements. 1. Human beings have 23 pairs of chromosomes. 2. Sex chromosome in human male are named XY. 3. Chromosomes are best seen in metaphase. Which of the statements given above is/are false about chromosomes?
Correct Answer
(D) None of the above
[#240] The most commonly used methods for mapping viral chromosomes utilise
Correct Answer
(D) All of the above