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Reproductive System

1. 

Spermatids derive the nourishment from

A. Nucleus B. Cytoplasm C. Cillated epithelial cell D. Sertoli cell

Answer : D. Sertoli cell

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2. 

Which one of the following types of sex chromosomes represents a male human being?

A. YY B. XX C. XY D. XO

Answer : C. XY

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3. 

Sexually reproducing organisms contribute to their off spring

A. half of their genes B. all the genes C. quarter of their genes D. double the number of their genes

Answer : A. half of their genes

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4. 

Collateral glands are found in

A. Male reproductive system of scorpion B. Female reproductive system of cockroach C. Male reproductive system of cockroach D. Female respiratory system of scorpion

Answer : B. Female reproductive system of cockroach

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5. 

Mark the correct statement:

A. All sperms fertilize all eggs B. Eggs are fertilized by many sperms C. Each egg is usually fertilized by one sperm D. Each sperm fertilizes one egg

Answer : C. Each egg is usually fertilized by one sperm

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6. 

Identical twins are born when

A. Two sperms fertilizes two ova B. Two sperms fertilizes one ovum C. Two sperms fertilizes two ovum D. One sperm fertilizes one ovum zygote cleaves into twoc cells that develop independently

Answer : D. One sperm fertilizes one ovum zygote cleaves into twoc cells that develop independently

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