NEET Apomixis MCQ Quiz Quiz Questions

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

2. Apomixis is a form of

A Vernalization B Parthenogenesis C Parthenocarpy D None of the above

3. Geitonogamy and autogamy both are prevented in which one of these?

A Cucumber B Maize C Castor D Papaya

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

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

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

7. Megasporium is equivalent to

A ovule B embryo sac C fruit D Nucleus

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

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

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