Questions

Q:

Select the correct statement contrasting gametophytes and sporophytes.

A) Sporophytes are diploid, whereas gametophytes are haploid. B) Sporophytes are vascular, whereas gametophytes are nonvascular.
C) Sporophytes are larger than gametophytes. D) All of the above
 
Answer & Explanation Answer: A) Sporophytes are diploid, whereas gametophytes are haploid.

Explanation:

Sexual reproduction results in gametes that combine two cells from different individuals. Meiosis also produces gametes. Haploids contain one set of chromosomes in each of their cells. Diploids cells contain two chromosome sets. For plants, haploid and diploid cells divide via mitosis. The plants’ haploid phase is called the gametophyte, and the diploid phase is called the sporophyte.

 

Sporophytes are diploid plants that use meiosis to produce spores. These spores are haploid cells that grow into haploid gametophytes. Megaspores grow into female gametophytes, and microspores grow into male gametophytes.

 

Gametophytes are haploid plants that use mitosis to make haploid gametes. These gametes are female in the form of an ovum (egg) or male in the form of sperm.

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Filed Under: Biology
Exam Prep: AIEEE

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Q:

Bone strength in later life depends on

A) the formation of dense bones during youth B) the increased calcium absorption in the elderly
C) the increased production of estrogen after menopause D) reducing physical activity to protect bones
 
Answer & Explanation Answer: A) the formation of dense bones during youth

Explanation:
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Filed Under: Biology
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Q:

'Asian Drama ', by Gunnar Karl Myrdal, is a book on which of the following subjects

A) Theatre Movements in Asia B) Economics
C) International Politics D) Look East Policy of India
 
Answer & Explanation Answer: B) Economics

Explanation:
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Filed Under: Books and Authors

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Q:

Primitive people practice animal rearing  in the tropical grasslands of _______

A) Brazil B) Northern Australia
C) East Africa D) Orinoco Basin in South America
 
Answer & Explanation Answer: C) East Africa

Explanation:
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Filed Under: World Geography

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Q:

You heard me before and then again. Afterward I die until you call me again.

What am I? 

Answer

ECHO.

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Subject: Logic Puzzles Exam Prep: CAT , Bank Exams , AIEEE
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Q:

Who is the winner of the prestigious Goldman Environment Prize called the Green Nobel for 2014?

Answer

Ramesh Agrawal

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Q:

Processing speed of computer is measured in MIPS.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Million Instructions Per Second is a method of measuring the raw speed of a computer's processor. MIPS measures roughly the number of machine instructions that a computer can execute in one second.

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Q:

A Book always has

A) Preface B) Text
C) Index D) Page
 
Answer & Explanation Answer: D) Page

Explanation:

A Book always has Pages. Without pages it can't be called as a book. A book can be either with or without preface, text or index but it can't be without a page.

 

Hence, A Book always has page.

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Filed Under: General Science
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