341402
Beginning of reproductive phase is marked by
1 End of juvenile phase
2 End of flowering season
3 End of senescence
4 Starting of senescence
Explanation:
Juvenile phase leads to reproductive phase.
BIOXII01: REPRODUCTION IN ORGANISMS
341403
Assertion : When it comes to sexual mode of reproduction, organisms share a similar pattern. Reason : Organisms differ so greatly in external morphology, internal structure and physiology.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Both Assertion and Reason are correct and \(\mathrm{R}\) is not the correct explanation of \(A\).
BIOXII01: REPRODUCTION IN ORGANISMS
341404
Which of these plants do not show clear cut vegetative, reproductive and senescent phase?
1 Annual plant
2 Biennial plant
3 Perennial plant
4 All of these
Explanation:
Perennials live for many years, unlike annuals and biennials which complete their life cycle in one and two years, respectively. Therefore perennials have different flowering periods like some flower after every 12 years, some flower after 50 years. So, we cannot distinguish between the juvenile, reproductive and senescent phases in these plants.
BIOXII01: REPRODUCTION IN ORGANISMS
341405
Seeds are regarded to be the product of sexual reproduction because they
1 Can be stored for a long period.
2 Give rise to new plants.
3 Are the result of fusion of male gamete with the female gamete.
4 None of the above
Explanation:
Seeds are called products of sexual reproduction because they are formed only after the fusion of male and female gametes. This process is called fertilization, where one of the male gametes that have entered the ovule through an opening called micropyle, fertilizes the egg cell (female gamete). The resulting zygote forms the embryo, which develops within the ovule which becomes a seed.
341402
Beginning of reproductive phase is marked by
1 End of juvenile phase
2 End of flowering season
3 End of senescence
4 Starting of senescence
Explanation:
Juvenile phase leads to reproductive phase.
BIOXII01: REPRODUCTION IN ORGANISMS
341403
Assertion : When it comes to sexual mode of reproduction, organisms share a similar pattern. Reason : Organisms differ so greatly in external morphology, internal structure and physiology.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Both Assertion and Reason are correct and \(\mathrm{R}\) is not the correct explanation of \(A\).
BIOXII01: REPRODUCTION IN ORGANISMS
341404
Which of these plants do not show clear cut vegetative, reproductive and senescent phase?
1 Annual plant
2 Biennial plant
3 Perennial plant
4 All of these
Explanation:
Perennials live for many years, unlike annuals and biennials which complete their life cycle in one and two years, respectively. Therefore perennials have different flowering periods like some flower after every 12 years, some flower after 50 years. So, we cannot distinguish between the juvenile, reproductive and senescent phases in these plants.
BIOXII01: REPRODUCTION IN ORGANISMS
341405
Seeds are regarded to be the product of sexual reproduction because they
1 Can be stored for a long period.
2 Give rise to new plants.
3 Are the result of fusion of male gamete with the female gamete.
4 None of the above
Explanation:
Seeds are called products of sexual reproduction because they are formed only after the fusion of male and female gametes. This process is called fertilization, where one of the male gametes that have entered the ovule through an opening called micropyle, fertilizes the egg cell (female gamete). The resulting zygote forms the embryo, which develops within the ovule which becomes a seed.
341402
Beginning of reproductive phase is marked by
1 End of juvenile phase
2 End of flowering season
3 End of senescence
4 Starting of senescence
Explanation:
Juvenile phase leads to reproductive phase.
BIOXII01: REPRODUCTION IN ORGANISMS
341403
Assertion : When it comes to sexual mode of reproduction, organisms share a similar pattern. Reason : Organisms differ so greatly in external morphology, internal structure and physiology.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Both Assertion and Reason are correct and \(\mathrm{R}\) is not the correct explanation of \(A\).
BIOXII01: REPRODUCTION IN ORGANISMS
341404
Which of these plants do not show clear cut vegetative, reproductive and senescent phase?
1 Annual plant
2 Biennial plant
3 Perennial plant
4 All of these
Explanation:
Perennials live for many years, unlike annuals and biennials which complete their life cycle in one and two years, respectively. Therefore perennials have different flowering periods like some flower after every 12 years, some flower after 50 years. So, we cannot distinguish between the juvenile, reproductive and senescent phases in these plants.
BIOXII01: REPRODUCTION IN ORGANISMS
341405
Seeds are regarded to be the product of sexual reproduction because they
1 Can be stored for a long period.
2 Give rise to new plants.
3 Are the result of fusion of male gamete with the female gamete.
4 None of the above
Explanation:
Seeds are called products of sexual reproduction because they are formed only after the fusion of male and female gametes. This process is called fertilization, where one of the male gametes that have entered the ovule through an opening called micropyle, fertilizes the egg cell (female gamete). The resulting zygote forms the embryo, which develops within the ovule which becomes a seed.
341402
Beginning of reproductive phase is marked by
1 End of juvenile phase
2 End of flowering season
3 End of senescence
4 Starting of senescence
Explanation:
Juvenile phase leads to reproductive phase.
BIOXII01: REPRODUCTION IN ORGANISMS
341403
Assertion : When it comes to sexual mode of reproduction, organisms share a similar pattern. Reason : Organisms differ so greatly in external morphology, internal structure and physiology.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
Both Assertion and Reason are correct and \(\mathrm{R}\) is not the correct explanation of \(A\).
BIOXII01: REPRODUCTION IN ORGANISMS
341404
Which of these plants do not show clear cut vegetative, reproductive and senescent phase?
1 Annual plant
2 Biennial plant
3 Perennial plant
4 All of these
Explanation:
Perennials live for many years, unlike annuals and biennials which complete their life cycle in one and two years, respectively. Therefore perennials have different flowering periods like some flower after every 12 years, some flower after 50 years. So, we cannot distinguish between the juvenile, reproductive and senescent phases in these plants.
BIOXII01: REPRODUCTION IN ORGANISMS
341405
Seeds are regarded to be the product of sexual reproduction because they
1 Can be stored for a long period.
2 Give rise to new plants.
3 Are the result of fusion of male gamete with the female gamete.
4 None of the above
Explanation:
Seeds are called products of sexual reproduction because they are formed only after the fusion of male and female gametes. This process is called fertilization, where one of the male gametes that have entered the ovule through an opening called micropyle, fertilizes the egg cell (female gamete). The resulting zygote forms the embryo, which develops within the ovule which becomes a seed.
