Q:

Which statement correctly describes the role of chance in evolution?

A) An allele that increases evolutionary fitness cannot be lost from a population by chance events.	B) The ultimate source of new alleles is mutation, random changes in the nucleotide sequences of an organism's DNA
C) Evolutionary change proceeds by an accumulation of changes that occur by chance.	D) None of the above

Answer & Explanation Answer: B) The ultimate source of new alleles is mutation, random changes in the nucleotide sequences of an organism's DNA

Explanation:

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Q:

A genus can best be defined as

A) a taxon composed of one or more species and a classification level lying below family	B) a taxon composed of families
C) the most specific taxon	D) a taxon comprised of classes

Answer & Explanation Answer: A) a taxon composed of one or more species and a classification level lying below family

Explanation:

A genus can best be defined as a taxon composed of one or more species and a classification level lying below family.

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Q:

If there is a lock on an adjacent key, an insert will fail if the isolation level is set to what?

A) committed read	B) repeatable read
C) share read	D) indexed read

Answer & Explanation Answer: B) repeatable read

Explanation:

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Q:

When did B.R. Ambedkar was received Bharat Ratna?

A) 1890	B) 1980
C) 1990	D) 1989

Answer & Explanation Answer: C) 1990

Explanation:

Dr. B.R. Ambedkar received Bharat Ratna in the year 1990.

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Q:

Which of the following team has won the 37th and final edition of the Hockey Champions Trophy at Breda, the Netherlands?

A) India	B) Australia
C) Brazil	D) The Netherlands

Answer & Explanation Answer: B) Australia

Explanation:

In the summit clash of the 37th and final edition of the Hockey Champions Trophy at Breda, the Netherlands, India lost to defending champions Australia via penalty shoot-off. The match went into the shoot-off after both the teams were locked at 1-1 in regulation time.

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Q:

Select the correct statement about the ureters.

A) The ureter is innervated by parasympathetic nerve endings only.	B) Ureters contain sphincters at the entrance to the bladder to prevent the backflow of urine.
C) The epithelium is stratified squamous like the skin, which allows a great deal of stretch.	D) The ureters are capable of peristalsis like that of the gastrointestinal tract.

Answer & Explanation Answer: D) The ureters are capable of peristalsis like that of the gastrointestinal tract.

Explanation:

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Q:

A basic concept in economics is that all resources are

A) Valuable	B) Limited
C) Renewable	D) Allocated

Answer & Explanation Answer: B) Limited

Explanation:

The basic concept in economics is that all resources are limited.

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Q:

Which is a correct way to measure wavelength?

A) Nearest peak to peak	B) Nearest peak to nearest trough
C) Nearest trough to peak	D) None of the above

Answer & Explanation Answer: A) Nearest peak to peak

Explanation:

Wavelength of a wave can be measured with the distance between two nearest crest and crest or nearest troughs. It is measured as armstrong units.

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