Please select a subject first
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Name the following:
Aquatic plants which are anemophilous.
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Name the following:
One plant each of Hypohydrophily and epihydrophily.
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Which natural cytokinin is obtained from unripe maize grain?
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Name the hormones secreted by adenohypophysis.
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Complete the following table:
| Sr. | Type of pollination | Agent | Kind of flower | Examples |
| (i) | ______ | Wind | ______ | Maize |
| (ii) | Chiropterophily | ______ | Dull colour, with strong fragrance, abundant nectar | Adansonia |
| (iii) | Entamophily | Insects | ______ | Rose/Jasmine |
| (iv) | Ornithophily | ______ | Brightly coloured, large and showy. They secrete profuse, dilute n ectar | ______ |
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Struggle between cow and cow to get grass is called ______.
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Explain sex determination in human beings.
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Answer the following questions related to sex determination in human beings:
i. What is sex chromosome?
ii. How many pairs of chromosomes are present in human beings?
iii. How is the sex of the human offspring determined?
iv. Draw a diagram depicting sex determination in man.
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Explain the mechanism of sex determination in birds.
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Name the species used in sericulture. Name the stages in the life cycle of a silk moth in cyclic form.
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Which of the following is an example of ZW – ZZ type of mechanism of sex determination?
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Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
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________ shows haplo-diploid type of sex-determination.
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With the help of a chart, explain the method of sex determination in honeybees.
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Drone of the honeybees shows haploid number of chromosomes. Illustrate.
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In which livings, female decides the sex? Give two examples.
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Very very short answer question.
Name the hormone secreted by the pineal gland.
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Short answer question
While holding a teacup Mr. Kothari’s hand's rattle. Which disorder he may be suffering from and what is the reason for this?
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Short answer question
An adult patient suffers from low heart rate, low metabolic rate, and low body temperature. He also lacks alertness, intelligence, and initiative. What can be this disease? What can be its cause and care?
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Short Answer Question.
“Father is responsible for determination of sex of child and not the mother”. Justify.
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