300+ TOP MCQs on Apomixis and Answers

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Apomixis Multiple Choice Questions

MCQs on Apomixis :

1. In many laboratories, active research is on to comprehend the genetics of apomixis
(a) Apomixis generates genetically different individuals
(b) Apomixis is the method to produce seeds without fertilization
(c) Hybrid plants are directly formed by apomixis
(d) Transfer of apomictic genes into hybrid varieties that shall prevent hybrid vigour loss over the years

Answer

Answer: (d)

2. Apomixis is a form of
(a) Vernalization
(b) Parthenogenesis
(c) Parthenocarpy
(d) None of the above

Answer

Answer: (b)

3. Geitonogamy and autogamy both are prevented in which one of these?
(a) Cucumber
(b) Maize
(c) Castor
(d) Papaya

Answer

Answer: (d)

4. In plants, apomixis pertains to plant development
(a) from root cuttings
(b) from cuttings of stem
(c) without the gametes having to fuse
(d) fusion of gametes

Answer

Answer: (c)

5. The reason why hybrid seeds have to be produced every year is
(a) hybrid seed industry tends to increase the cost of seeds
(b) hybrid plants turn sterile in coming years
(c) show more heterosis in coming years
(d) hybrid vigour is not maintained in more than one generation as segregation of genes is initiated in the second generation

Answer

Answer: (d)

6. In adventive embryony, a type of apomixis, the embryo develops directly from the
(a) Zygote
(b) accessory embryo sacs in the ovule
(c) antipodals or synergids in an embryo sac
(d) integuments or nucleus

Answer

Answer: (d)

7. Megasporium is equivalent to
(a) ovule
(b) embryo sac
(c) fruit
(d) Nucleus

Answer

Answer: (a)

8. One of these statements about apomixis is incorrect
(a) formation of seeds without fertilization
(b) Meiotic division and fertilization of gametes takes place to form a zygote
(c) Seeds are genetically similar
(d) None of these

Answer

Answer: (b)

9. This about apomixis is true:
(a) There is no fertilization involved in both apomixis and parthenocarpy
(b) Apomixis produces genetically identical mother cells
(c) Apomixis is observed in angiosperms and gymnosperms
(d) All of the above

Answer

Answer: (d)

10. The difference between perisperm and endosperm is that perisperm:
(a) has reserve food
(b) forms by fusion of the secondary nucleus with several sperms
(c) is a diploid tissue
(d) is a haploid tissue

Answer

Answer: (c)

Leave a Reply

Your email address will not be published. Required fields are marked *