Meiosis is the process that reduces the number of chromosomes from diploid to haploid in cell division in sexually reproducing species. The process requires two consecutive nucleus divisions and helps in the development of animal reproductive cells (gametes). It also leads to the development of spores in fungi, plants, and most algae.
The process of Meiosis begins when the duplicated chromosomes condense in the middle of the nucleus and sets of homologous chromosomes cross over, sharing some of their genetic material.
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
The output (Y) of the given logic implementation is similar to the output of an/a …………. gate.
The term reproduction is a biological process that means to reproduce. It is a process by which an organism reproduces an offspring that is biologically similar or identical to its parents. Reproduction accredits and ensures the continuity of species, generation after generation, and is the main character of life on earth.
There are two types of reproduction such as:
It is the production an offspring by a single parent beyond the formation and fusion of gametes. The young one obtains all its genes from one parent, so are identical.
Sexual reproduction is mostly biparental, includes the formation of meiosis gamete usually fertilization also, instigates genetic variation in the offspring, and plays a role in the evolution of species, found in higher plants and animals.