1 .What is a genetic drift?
2 . What are the uses of fossils?
3 . What term did Mendel use for genes? Where are the genes located?
4. What is the effect of DNA copying which is not perfectly accurate on the reproduction process?
Answers
Answer:
1. Genetic drift (also known as allelic drift or the Sewall Wright effect) is the change in the frequency of an existing gene variant (allele) in a population due to random sampling of organisms
2.fossil (from Classical Latin: fossilis, literally "obtained by digging")[1] is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants. The totality of fossils is known as the fossil record.
Paleontology is the study of fossils
3.Mendel used the term 'factors' for genes. Genes are portions of DNA which are located at specific loci on chromosomes.
4.The DNA copying which is not perfectly accurate in the reproduction process results in variations in populations for the survival of species. If the variation are more drastic then the DNA will not be able to function properly leading to the death of the cell.
Explanation:
Answer:
1. variation in the realative frequency of different genotype in a small population , owning to the chance disappearances of particular genes as individual s die or do not reproduce.
2.F fossils are useful in exploration for minerals and mineral fuels