Both male and female reproductive structurs are present on the same plants in
(A) Cucurbits, Coconut
(B) Coconut, Papaya
(C) Cucurbits, Date palm
(D) Papaya, Date Palm

In papaya male and female flowers are present on different plants it permits

Plants like papaya and date palm show

Pick the monoecious plant. (a) Date palm (b) Cucumber (c) Mulberry (d) Papaya

Which of the following plants is not monoecious? (a) Maize (b) Cucumber (c) Date palm (d) Castor

Read the following statements and find out the incorrect statements. a. In majority of organisms, male gamete is motile and female gamete is non-motile (stationary). b. In algae and fungi, both male and female gametes are non-motile. c. In seed plants, pollen grains are the carrier of male gametes and ovule has the egg. d. In dioecious plants, pollination facilitates trasnfer of pollen grains to the stigma. e. In monoecious animals, since male and female gametes are formed in different individuals, the organism must evolve special mechanism for gamete transfer.

Assertion: Glucose reacts with hydroxylamine to form an oxime and alsoadds a molecule of hydrogen cyanide to give cyanohydrin. Reason: The carbonyl group is present in the open chain structure of glucose. (a) Both assertion and reason are correct statements, and reason is the correct explanation of the assertion (b) Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion (c) Assertion is correct, but reason is wrong statement. (d) Assertion is wrong, but reason is correct statement.

Coconut palm is monoecious while date palm is dioecious. Why are they called so?

Coconut palm is monoecious while date palm is dioecious. Why are they called so?

How many plants given below possesses unisexual flowers ? Cucumber , maize, papaya , castor , Cycas, date palm.

The diagram given below represents a surgical sterilization method in males. Study the same and answer the questions that follow: (i) Name the parts marked A, B, C, D and E. (ii) Give the name of the surgical method represented in the diagram. (iii) Which part is ligated or cut ? (iv) Name the corresponding surgical method conducted on females. (V) Name the part which is ligated in females and why?