The gametophyte is the generation of plants which is haploid. In this phase, the male and the female organs are developed and eggs and sperms are produced by these organs through the process of simple mitosis. Now, the plant gets ready for sexual reproduction. When the egg and the sperm are fused during the process of fertilization, a zygote is formed. This zygote then develops into a diploid generation which is termed as the sporophyte.
During this phase, the unicellular spores are produced through the process of meiosis. These spores are then developed into a new gametophyte generation. This phenomenon is known as alternation of generations. The gametophyte phase is dominant in the plants which are non-vascular whereas the sporophyte phase is dominant in vascular plants.
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
A woman who is heterozygous, Bb, has brown eyes;
Explain why familial breast cancer shows a dominant pattern of inheritance in
How is an F′ factor different from an F factor?
With regard to the timing of conjugation, explain why the recipient
The raw material for evolution is random mutation. Discuss whether or
Why is an antibody used in this experiment? From
Explain the type of speciation (allopatric, parapatric, or sympatric
In fruit flies, curved wings are recessive to straight wings,
A recessive allele in mice results in an unusally long neck.
