General Science - Online Test
Q1. Non economic activities are
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. A long string of charge λ per unit length passes through an imaginary cube of edge a. The maximum flux of the electric field will be
Answer : Option D
Explaination / Solution:
The maximum length of string that can be fit into cube is
which is equal to the length of body diagonal So the charge inside the cube is
So flux
Q3. Hardy-Weinberg principle states that allele frequencies in a population are stable and is
Answer : Option D
Explaination / Solution:
The Hardy–Weinberg principle, also known as the Hardy–Weinberg equilibrium, model, theorem, or law, states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences.
Q4. The emergency contraceptives used to avoid possible pregnancy due to rape or unprotected intercourse is
Answer : Option A
Explaination / Solution:
The emergency contraceptives used to avoid possible pregnancy due to rape or unprotected sexual intercourse is a combination of progestogen and estrogen within 72 hours of sexual intercourse.
Q5. If the diameter of earth is , then its capacitance will be
Answer : Option D
Explaination / Solution:
the capacitance of a spherical conductor of radius R is
Q6. The methods involved in HGP have two major approaches, one approach focused on identifying all the genes that expressed as RNA called as Expressed sequence tags the other one is
Answer : Option D
Explaination / Solution:
The Human Genome Project (HGP) involved two major approaches; one approach called as Expressed sequence tags the other one is called sequence annotation.
DNA annotation or genome annotation is the process of
- (a) identifying the locations/segments of genes, coding regions and other specific locations that are of imporatance in a DNA sequence or genome and
- (b) associating relevant information with those locations/segments (e.g. determining what the identified genes do).
Q7. Cessation of menstrual cycle in female in female is known as
Answer : Option A
Explaination / Solution:
In female, menstrual cycle stops at about 50 years of age. This is called menopause. It is controlled by hormone released by ovum.
Q8. Argon is used
Answer : Option B
Explaination / Solution:
Argon is noble gas. Ar is used in high temp welding to provide inert atmosphere.
Q9. Economic activity which is concerned with production of capital goods for further production of goods and services
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. Which one is used for knowing whether or not a population is evolving?
Answer : Option D
Explaination / Solution:
Hardy-Weinberg equation is used to knowing whether or not a population is evolving or not. This equation is represented as
In the equation, p2 represents the frequency of the homozygous genotype AA, q2 represents the frequency of the homozygous genotype aa, and 2pq represents the frequency of the heterozygous genotype Aa.
