Question # 1

Which of these cells have haploid number of chromosomes:

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Spermatogonium

Primary spermatocyte

Secondary spermatocyte

All of these

Parthenogenesis is a type of reproduction:

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Sexual

Fregmentation

Aseual

Grafting

___________ is the longest bone in our body.

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Arm

Leg

Thigh

Foot

Double fertilization in plants means:

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Fusion of two sperm with two egg cells.

Fusion of one sperm with egg cell and other sperm with fusion nucleus

Fusion of two sperm with single egg cell

Fusion of tube nucleus with fusion nucleus and sperm egg cell

DNA wraps around histone protein and forms-rounded structures called as

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Nucleosomes

Ribosomes

Lysosomes

mRNA

Genes consist of:

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DNA

RNA

mRNA

Protein

Which organ is responsible for filtering the blood?

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Intestine

Brain

Stomach

Kidney

The allele which is not expressed is called:

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Dominant

Phenotype

Genotype

Recessive

Vertebral column protects:

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Heart

Spinal cord

Brain

Lungs

the type of symbolic association in which partner gets benefits while other is neither benefited nor harmed is called:

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Commensalism

Mutualism

Parasitism

Predation

In tissue culture technique, cell starts mitosis and produce masses of cells called.

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Clonning

Graftings

Calluses

Rhizome

Every ripened ovule is called:

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Leaves

Flower

Seed

Fruit

Cloning is latest method of :

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Tissue culture

Vegetation propagation

Cutting

Grafting

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