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HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Biology

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Biology
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Which hormone is secreted by Pineal gland? What is its function?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
Concept: undefined >> undefined

Meanrch, menstrual cycle, and menopause are controlled by ______.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

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How many pairs of testis are present in human male?

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

Describe the structure of a Graafian follicle.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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Explain the ovarian cycle with its different phases.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

Give an example of complete linkage.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
Concept: undefined >> undefined

How many linkage groups are present in Drosophila melanogaster?

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
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Write a note on sex linkage.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
Concept: undefined >> undefined

Differentiate between complete and incomplete linkage.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
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Give detail account of sex-linked inheritance.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
Concept: undefined >> undefined

Identify ‘A’ from the following ECG.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
Concept: undefined >> undefined

Define hypertension. Explain coronary artery disease and angina pectoris.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
Concept: undefined >> undefined

Blood pressure ______ indicates hypotension.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
Concept: undefined >> undefined

Corpus luteum develops from ______.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

Corpus luteum ______.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

While playing cricket Raju faces problems of severe pain and heaviness in the chest. Pain spreads from the neck, lower jaw, left arm and left shoulder. From the above symptoms identify the disease:

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
Concept: undefined >> undefined

Describe hormonal control in various phases of the menstrual cycle.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

Give the name of the instrument which is used to measure the blood pressure.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
Concept: undefined >> undefined

Give the factors which affect the blood pressure.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
Concept: undefined >> undefined

QRS is related to

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
Concept: undefined >> undefined
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