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CBSE Notes 2011-2012 » X-Science-Term2

How Do Organisms Reproduce ?

Which among the following statements are true for unisexual flowers ? (i) They possess both stamen a...

Multiple choice question

Which among the following statements are true for
unisexual flowers ?
(i) They possess both stamen and pistil
(ii)They possess either stamen or pistil
(iii)They exhibit cross pollination
(iv)Unisexual flowers possessing only stamens cannot
produce fruits

In a flower, the parts that produce male and female gametes (germ cells) are

Multiple choice question

In a flower, the parts that produce male and female gametes
(germ cells) are

Which among the following statements are true for sexual reproduction in flowering plants ? (i) It r...

Multiple choice question

Which among the following statements are true for sexual
reproduction in flowering plants ?
(i) It requires two types of gametes
(ii) Fertilisation is a compulsory event
(iii)It always results in formation of zygote
(iv)Offspring formed are clones

Which of the following is the correct sequence of events of sexual reproduction in a flower ?

Multiple choice question

Which of the following is the correct sequence of events
of sexual reproduction in a flower ?

Offspring formed as a result of sexual reproduction exhibit more variations because

Multiple choice question

Offspring formed as a result of sexual reproduction exhibit
more variations because

Offspring formed by asexual method of reproduction have greater similarity among themselves because ...

Multiple choice question

Offspring formed by asexual method of reproduction have
greater similarity among themselves because
(i) asexual reproduction involves only one parent
(ii) asexual reproduction does not involve gametes
(iii) asexual reproduction occurs before sexual
reproduction
(iv) asexual reproduction occurs after sexual
reproduction

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