Wednesday, October 15, 2008

Biogenetics of Intelligence

Intelligence is a critical behavioral quantity which is governed by bio-psycho-sociological factors. Intellect can be defined as a phenomenon that constitutes the power of mind to execute a thinking behavior with reasoning ability for the purpose of gaining knowledge. However, intelligence even today is a very abstract concept and not all psychologists agree to each other.

Intelligence can be of various types. To put it simple, your sister might have an artistic instinct which you don’t have. Again you might have a good player instinct that your sister might not have. So it is really difficult to design any particular scale to measure one's level of intelligence.

With the advancement of the field of genetics, more and more researchers are now taking interest in finding out the genetic base of intelligence. We all know that both genetic factors and environmental factors have a strong influence on intelligence. Quite obviously, this makes intelligence a complex trait. We are not yet able to discover much how the quantity and quality of gene affects intelligence.

Different biogenetic studies suggest that monozygotic twins (MZ) show higher degree of correlation between intelligence and behavioral changes than dizygotic twins (DZ). The correlation between DNA sequence and behavioral difference is causal in natural, since DNA variations may influence the c change in behavioral pattern, but behavioral disparity does not lead to change in DNA sequence. There is still a strong debate, nature vs. nurture, when it comes to many psychological behaviors like intelligence.

Ok, now we need to know the answers of the previous set:

1. d) 16; 2. a) FGRNZ; 3. b); 4. c) 1/53; 5. b) 17; 6. c) 0.005; 7. d) to maintain unity; 8. d) 38; 9. c) 5 only; 10. c) Psychology is the science of behavior of all living organisms.

Now it's time to go for today's questions. Here it is.

Today's (15th October, 2008) Questions

1. Choose the alternative which completes the given series.

2. Find the next number in the series

1, 2, 9, 29, 65, _____

a) 126
b) 182
c) 196
d) 245

3. Spot the gesture that does not belong to the group

a) clenched first
b) accusing finger
c) taut muscles
d) relaxed face

4.) You arrive at the site of a road accident that has just occurred. Some persons in the crowd make false accusations and blame you for hurting victim. What will be your first and foremost duty, under the circumstances?

a) to run away
b) to reason out with the people
c) to give first-aid to the victim
d) to inform the police

5. In a class, 1/3 of the total students were regular absentees. On a particular day, in addition to the regular absentees, the number of other absentees was half of the regular absentees, which amounted to only 50% of the total attendance in the class. What is the total strength of the class?

a) 10
b) 15
c) 20
d) 24

6. A lady is making ‘Rangoli’ to decorate the door step of her house. To start with she puts 13 dots as shown in the given figure in a symmetrical placement. Before coloring the figure she join with straight lines, the points 1 to 9, 9 to 5, 5 to 13 and 1 to 13. Now state how many triangles would be she have in the figure to fill with colored dust for completing her ‘Rangoli’?

a) 8
b) 12
c) 16
d) 20

7. What is the ratio of the areas of two circles whose radii are in the ratio 1:2?

a) 1:2
b) 1:3
c) 1:4
d) 2:7

8. Arriving at the railway platform at 1000 hours, a man found that he was two hours 10 mins earlier than the man who on reaching at 1210 hours, found himself 40 mins late. What was the scheduled time of the train?

a) 1210
b) 1140
c) 1130
d) none of these

9. A train 65 meters long, takes 5 sec to cross a telegraph pole, how much time will it take to pass a station platform 117 meters long

a) 9 sec
b) 10 sec
c) 13 sec
d) 14 sec

10. Provide the most logical deduction
Given the following premises –
i) All equilateral triangle have three equal sides
ii) ABC is a triangle with two equal sides

which of the following is the most logical deduction?

a) All equilateral triangles have at least two equal sides
b) ABC is not an equilateral triangles
c) Some triangles are equilateral triangle
d) All triangles have three equal sides

An Update: The next session will appear on 17th October, 2008. Till then, stay tuned.