CHAPTER 5 Principles of Inheritance and Variations Which of the following is example of substantive discontinuous variation(i) Hair less cat(ii) Polydactyly in humans(iii) Short legged ancon sheep(a) (i) (ii) & (iii)(b) (i) & (ii)(c) (i) & (iii)(d) (ii) & (iii) 2. Which of the following is incorrect(a) Theory of Pangenesis Read more…
Sexual Reproduction in Flowering Plants 1. A typical angiosperm anther consists of(a) Only one microsporangium(b) Two microsporangia(c) Three microsporangia(d) Four microsporangia 2. What is the ploidy of the cells of the microspore tetrad?(a) Haploid(b) Diploid(c)Triploid(c) Polyploid 3. Tapetum is(a) Nutritive tissue(b) Protective tissue(c) Sporogeneous tissue(d) External layer of microsporangium 4. Read more…
Reproduction in Organisms 1. Which is not true for life span of an organism?(a) Period from birth to natural death of an organism(b) It is necessarily correlated with size of organisms(c) It may be very short(d) Senescence is a phase of life span 2. In asexual reproduction(a) Single parent is Read more…
