the relationship between mutations and genetic variation
Mutations are changes in the DNA. While genetic variation is the gene of organisms within a population change. Some mutations can be beneficial and can increase in a population if they help organisms reach sexual maturity and reproduce. As of saying the relationships between mutations and genetic variation is that, both provides the individual an increased chance of surviving over other species.
how Meiosis contributes to variation
Variation within a species can provide some individuals with an increased chance of surviving over other species. Depending on the environment and selection pressures at a particular time, different variations may be advantageous. Lots of different variations within individuals can seek more of a chance that some will survive to reproduce. This improves the chances of the species surviving.
Meiosis is the nuclear division which is a production of gametes (sex cells). It is a process which the chromosome number is halved. Together, the egg which is brought from the mother has 23 chromosomes and the sperm of the father also with 23 chromosomes come together to create fertilisation, creating a zygote forming 46 chromosomes all together. The process of meiosis and fertilisation is a result in every generation having the same number of chromosomes. The process also takes place in animals and plants.
Meiosis provides sexually reproducing organisms with a source of variation.
Meiosis is the nuclear division which is a production of gametes (sex cells). It is a process which the chromosome number is halved. Together, the egg which is brought from the mother has 23 chromosomes and the sperm of the father also with 23 chromosomes come together to create fertilisation, creating a zygote forming 46 chromosomes all together. The process of meiosis and fertilisation is a result in every generation having the same number of chromosomes. The process also takes place in animals and plants.
Meiosis provides sexually reproducing organisms with a source of variation.