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Biotechnology and Its Applications
Question
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Female cone of Pinus is a

  • Modified needles

  • Modified long shoot

  • Modified dwarf shoot

  • Modified scale

Answer

D.

Modified scale

The female cone of Pinus is formed by the aggregation of megasporophylls, which bear ovules. Each megasporophyll consists of a lower bract scale and a larger upper ovuliterous scale.

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Some More Questions From Biotechnology and Its Applications Chapter

Name two diseases that can be treated by producing biological compound in transgenic animal.

Name the first transgenic cow.

Name the toxin produced by Bacillus thuringiensis.

What is the utility of Bt-Toxin gene ?

Bt-toxin protein exist in which form ?

How is inactive Bt-toxin converted into active form ?

How Bt toxin causes death of insect ?

Name a few forms of cry gene.

List the specific insects killed by (i) cryIAc and (ii) cryIAb.

Name the insect killed by proteins coded by cryIIAb and cry IAc.