The below structureal formula belongs to –
Plant hormone associated with Climacteric respiration is
As a pollen tube grows into the female organ, the nucleus that enters the synergid first is called the
Sharks do not have
Which element is normally absent in proteins?
In leaves of C4 plants malic acid synthesis during CO2 fixation occurs in
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Solution
In leaves of C4 plants, malic acid synthesis during CO2 fixation occurs in mesophyll cells. The mesophyll cells perform C4 cycle and the cells of bundle sheath perform C3 cycle.
The microtubules from opposite poles of the spindle get attached to the kine to chores of sister chromatids in
A cross between parents with A and AB blood groups results in the offspring with which of the following blood groups?
A free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is
Action of vaginal diaphragm is –
An organism having cytoplasm DNA and RNA but no cell wall is
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Solution
Mycoplasma are cell wall less cells but show multiplication like bacteria, so that they are termed as cell wall less bacteria.
Pineapple can be made to flower in off season by:
Which of the following plants are used as green manure in crop fields and in sandy soils?
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Solution
Crotolaria juncea and Alhagi camelorum are among the plants which are used as green manures in India. These green manures help the soil through increasement of area and water holding capacities and fertility.
Secretion of which of the following structure is preparing inner wall of uterus of implantation
Penicillin inhibits bacterial multiplication because it
Virus envelope is known as:
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Solution
Virus envelope is known as capsid. The capsid is composed of protein sub units called capsomere
Globulins contained in human blood plasma are primarily involved in :
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Solution
Globulins contained in human blood plasma are primarily involved, in defence mechanism of body. Globulin is one of the two types of serum proteins, the other beingalbumin. Globulins can be divided into three fractions based on their electrophoretic mobility. Most of the alpha and beta globulins are synthesized by the liver,whereas gamma globulins are produced by lymphocytes and plasma cells in lymphoid tissue
An important factor contributing to the onset and maintenance of labour contractions is
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Solution
Labour is brought on and intensified by all of these factors.
Epidermis of skin of vertebrates comprises –
Which of the following does not contain chlorophyll ?