If you know your genetics, you can adjust your lifestyle to lower your risk of hereditary diseases.
Production of offspring is necessary for a speices to surive, but it is not necessary for an individual to surive
True. Crossing over is a genetic process during meiosis where chromosomes exchange segments of DNA. This creates genetic variation in the offspring, making them different from their parents.
Genetic variation is necessary for evolution to occur, as it provides the raw material for natural selection to act upon. This variation can arise from mutations, genetic recombination, or gene flow.
The process responsible for genetic variation is genetic recombination, which occurs during meiosis when genetic material is exchanged between homologous chromosomes. Mutations, which are changes in the DNA sequence, also contribute to genetic variation.
Mechanisms such as gene flow, mutation, genetic drift, and natural selection are all considered mechanisms for genetic variation. Non-genetic mechanisms, such as Lamarckian inheritance or acquired characteristics, are not considered valid mechanisms for genetic variation in the traditional sense.
Production of offspring is necessary for a speices to surive, but it is not necessary for an individual to surive
The statement that is FALSE concerning gametes produced by meiosis is that they are genetically identical to the parent cell. Meiosis results in the formation of haploid gametes with genetic variation due to crossing over and independent assortment of chromosomes during the process.
True. Crossing over is a genetic process during meiosis where chromosomes exchange segments of DNA. This creates genetic variation in the offspring, making them different from their parents.
Loss of genetic variation(:Novanet:)
Genetic variation is necessary for evolution to occur, as it provides the raw material for natural selection to act upon. This variation can arise from mutations, genetic recombination, or gene flow.
Human recombination is a significant source of genetic variation.
mutations cause genetic variation, and vice-versa. If there is a genetic variation (or lack of one), then this can effect the severity of the mutation.
The patterns of nitrogenous bases in DNA encoded on the genes creates genetic variation.
No, natural selection works on that genetic variation presented to it.
Genetic variation is necessary for natural selection to occur. This variation provides the raw material for differential survival and reproduction, which drives the process of natural selection. Without genetic variation, there would be no differences for natural selection to act upon.
genetic and environmental variation
The process responsible for genetic variation is genetic recombination, which occurs during meiosis when genetic material is exchanged between homologous chromosomes. Mutations, which are changes in the DNA sequence, also contribute to genetic variation.