CELL STRUCTURES AND FUNCTION
CELL DIVISION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
So the offspring has genes from both parents
|
|
|
So the offspring has genes from one parent
|
|
|
So the offspring has genes from neither parents
|
|
|
So the offspring makes its own genes
|
Detailed explanation-1: -Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.
Detailed explanation-2: -Meiosis is important for creating genomic diversity in a species. It accomplishes this primarily through 2 processes: independent assortment and crossing over (recombination).
Detailed explanation-3: -During meiosis I, the random orientation of the maternal and paternal chromosomes can lead to variation. The exchange of genetic information between homologous chromosomes also induces variation. The random orientation of sister chromatids in meiosis II also generates genetic variation.
Detailed explanation-4: -Genetic variation is increased by meiosis During fertilisation, 1 gamete from each parent combines to form a zygote. Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote.
Detailed explanation-5: -The answer is meiosis because that is where “crossover” and recombination of DNA take place in sexual reproduction, increasing genetic variation of offspring. A genetically diverse population of individuals is more likely to survive than a population of individuals with similar genetic makeup.