The term 'clone' cannot be applied to offspring formed by sexual reproduction because
offspring do not possess exact copies of parental DNA
DNA of only one parent is copied and passed on to the offspring
offspring are formed at different times
DNA of parent and offspring are completely different
Amoeba and yeast reproduce asexually by fission and budding respectively, because they are
microscopic organisms
heterotrophic organisms
unicellular organisms
uninucleate organisms
A few statements with regard to sexual reproduction are given below
I. Sexual reproduction does not always require two individuals.
II. Sexual reproduction generally involves gametic fusion.
III. Meiosis never occurs during sexual reproduction.
IV. External fertilisation is a rule during sexual reproduction.
Choose the correct statements from the options below.
I and IV
I and II
II and III
I and IV
A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has
haploid vegetative cells and diploid gametangia
diploid vegetative cells and diploid gametangia
diploid vegetative cells and haploid gametangia
haploid vegetative cells and haploid gametangia
The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively
$12,24,12$
$24,12,12$
$12,24,24$
$24,12,24$