Q:

Human Rights Day is observed on

A) December 10	B) December 11
C) December 12	D) December 14

Answer & Explanation Answer: A) December 10

Explanation:

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Q:

Which three processes are methods of genetic recombination?

A) independent assortment	B) Crossing over
C) fertilization	D) All the above

Answer & Explanation Answer: D) All the above

Explanation:

Genetic recombination is a complex process that involves alignment of two homologous DNA strands, precise breakage of each strand, equal exchange of DNA segments between the two strands, and sealing of the resultant recombined DNA molecules through the action of enzymes called ligases.

Crossing over, independent assortment and fertilization are methods of genetic recombination.

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Q:

Implantation is the process of

A) the development of a child inside the mother's body	B) attachment of zygote to the lining of a uterus
C) nutrition from mother's blood through placenta	D) developing an embryo and its nourishment

Answer & Explanation Answer: B) attachment of zygote to the lining of a uterus

Explanation:

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Q:

Which of the following is necessary to maintain the number of individuals of species and to prevent their extinction?

A) Digestion	B) Circulation
C) Respiration	D) Reproduction

Answer & Explanation Answer: D) Reproduction

Explanation:

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Q:

Parthenocarpy is defined as

A) Development of root without fertilisation	B) Development of fruit without fertilisation
C) Development of fruit with fertilisation	D) Development of root with fertilisation

Answer & Explanation Answer: B) Development of fruit without fertilisation

Explanation:

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Q:

An indifference curve measures the same level of ___________

A) Output from two factors	B) Satisfaction from two commodities
C) Satisfaction from Income and Capital	D) Satisfaction from expenditure and savings

Answer & Explanation Answer: B) Satisfaction from two commodities

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Q:

Which of the following is the correct description of the term sex-ratio as used in the context of the census of population?

A) Number of males per 1000 females.	B) Number of females per 1000 males.
C) Number of females per 100 males.	D) Number of females in a sample of 1000 persons.

Answer & Explanation Answer: B) Number of females per 1000 males.

Explanation:

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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No error'.
The reason for (1)/ his failure is because (2)/ he didn't study at all. (3)/ No Error (4)

A) 1	B) 2
C) 3	D) 4

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