General Science - Online Test
Q1. Typically DNA content of about 100000 cells or 1 microgram is required for fingerprinting. If the sample obtained is less it is increased by
Answer : Option C
Explaination / Solution:
Amplification is a mechanism leading to multiple copies of a chromosomal region within a chromosome arm.
The DNA amplification technique of the polymerase chain reaction (PCR) is a laboratory method for creating multiple copies of small segments of DNA.
Q2. Which of the following group of hormones are produced during pregnancy?
Answer : Option A
Explaination / Solution:
Human chorionic gonadotropin (hCG), human placental lactogens (hCL) and relaxin are produced in human females only during pregnancy.
Q3. Economic equilibrium means
Answer : Option D
Explaination / Solution:
No Explaination.
Q4. In which of the following compounds, nitrogen exhibits highest oxidation state?
Answer : Option A
Explaination / Solution:
In azide () have oxidation state -1/3
Q5. Modern Homo sapiens arose during ice age between
Answer : Option B
Explaination / Solution:
Homo sapiens arose in Africa and moved across continentsand developed into distinct races. During ice age between 75,000-10,000 years ago modern Homo sapiens arose.
Q6.
Statement I: DNA finger printing is highly reliable method of identification of individual involved in crimes.
Statement II: DNA a fingerprinting is a sure method in solving paternity and maternity disputes.
Statement III: DNA fingerprinting can be used to cure HIV infection.
Answer : Option C
Explaination / Solution:
DNA finger printing is highly reliable method of identification of individual involved in crimes. DNA a fingerprinting is a sure method in solving paternity and maternity disputes.DNA fingerprinting cannot be used to cure HIV infection.
Q7. Parturition occurs due to release of hormone oxytocin that cause
Answer : Option C
Explaination / Solution:
Oxytocin hormone is released by foetal ejection reflex from maternal pituitary gland that causes stronger and stronger uterine contraction that leads to ejection of baby through birth canal.
Q8.
Match the following. Options are
Answer : Option C
Explaination / Solution:
No Explaination.
Q9. Which of the following statements regarding ozone is not correct?
Answer : Option A
Explaination / Solution:
bond order of O-O bond in ozone is less than that in oxygen.
Ozone molecule can be represented as resonance hybrid of two canonical structures, each structure have one single bond on one side and double bond on the another side.
Q10. Human settlement started around 10, 000 years ago due to starting of
Answer : Option D
Explaination / Solution:
Agriculture came around 10,000 years back and human settlements started. After starting of agriculture, the human civilization started the grows and decline many times.
