
Which among the following statements are true for sexual reproduction in flowering plants?
i. It requires two types of gametes.
ii. Fertilization is a compulsory event.
iii. It always results in the formation of zygote.
iv. Clones of offspring are formed.
A. (i) and (iv)
B. (i), (ii) and (iv)
C. (i), (ii) and (iii)
D. (i) and (ii)
Answer
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Hint: Pollination is the process through which flowering plants reproduce sexually. Male sex organs called stamens and female sex organs called pistils are found in the flowers. The anther is the pollen-bearing portion of the stamen. The pollen must be transferred to the stigma, which is a component of the pistil.
Complete answer:
We will solve this answer by observing the trueness of the provided statements in view of sexual reproduction in flowering plants.
Statement –(i) Sexual reproduction requires two types of gametes namely, male gamete and female gamete further the male gamete is smaller and usually moves towards the immotile and large female gamete.
So, the statement –(i) is correct.
Statement –(ii) Yes, it is a true fact that in sexual reproduction the fusion of two gametes is a compulsory event which forms the zygote. In this process usually two haploid cells fuse to form a diploid zygote.
So, the statement –(ii) is correct.
Statement –(iii) Fertilization results in the formation of diploid zygote which undergoes post fertilization changes ultimately forming the embryo and later developing into an adult.
So, statement –(iii) is also correct
Statement –(iv) Sexual reproduction does not result in the formation of clones as during the process of meiosis recombination events lead to certain variations in the progeny and the parents.
Therefore, the statement –(iv) is not correct.
Now based on our observations Option-C is correct as it confers statements –(i),(ii) and (iii) as correct with regard to sexual reproduction in flowering plants.
Hence option C. (i), (ii) and (iii) is the correct answer.
Note:
Seeds formed during fertilization in sexually reproducing flowering plants include genetic information from both parents. As a result, neither of the parent plants' offspring are genetically similar. If the environment changes, these genetic differences may help them survive.
Complete answer:
We will solve this answer by observing the trueness of the provided statements in view of sexual reproduction in flowering plants.
Statement –(i) Sexual reproduction requires two types of gametes namely, male gamete and female gamete further the male gamete is smaller and usually moves towards the immotile and large female gamete.
So, the statement –(i) is correct.
Statement –(ii) Yes, it is a true fact that in sexual reproduction the fusion of two gametes is a compulsory event which forms the zygote. In this process usually two haploid cells fuse to form a diploid zygote.
So, the statement –(ii) is correct.
Statement –(iii) Fertilization results in the formation of diploid zygote which undergoes post fertilization changes ultimately forming the embryo and later developing into an adult.
So, statement –(iii) is also correct
Statement –(iv) Sexual reproduction does not result in the formation of clones as during the process of meiosis recombination events lead to certain variations in the progeny and the parents.
Therefore, the statement –(iv) is not correct.
Now based on our observations Option-C is correct as it confers statements –(i),(ii) and (iii) as correct with regard to sexual reproduction in flowering plants.
Hence option C. (i), (ii) and (iii) is the correct answer.
Note:
Seeds formed during fertilization in sexually reproducing flowering plants include genetic information from both parents. As a result, neither of the parent plants' offspring are genetically similar. If the environment changes, these genetic differences may help them survive.
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