ExamAdept

Neurospora is used as genetic material because

A:

it has short life cycle of 10 days

B:

the product of single meiosis can be easily analysed

C:

meiotic products are linearly arranged in the form of ordered tetrads

D:

is a diploid fungus

Answer: A

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Plants hormone that induces cell division is

A:

auxins

B:

gibberellins

C:

kinins

D:

domins

Answer: C

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Placenta is the structure formed

A:

by the union of foetal and uterine tissue

B:

by foetus only

C:

by fusion of germ layers

D:

None of these

Answer: A

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O₂ released in the process of photosynthesis comes from

A:

CO₂

B:

water

C:

sugar

D:

pyruvic acid

Answer: B

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Pyorrhoea is a disease of the

A:

nose

B:

gums

C:

heart

D:

lungs

Answer: B

Pyorrhoea, or periodontal disease, to give it a proper medical term, is a disease of the gums, it is one of the most widely prevalent diseases. It affects the membrane surrounding the roots of the teeth and leads to loosening of the teeth, pus formation, and shrinkage of the gum. This disease is the primary cause for tooth loss among adults.

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Questions for: Biology